Bonjour,
j'ai déjà été aidé sur ce sujet sur une calculette.
je voulais m'inspirer de ce aide pour refaire sur une autre calculette mais j'arrive pas . Or j'en ai besoin.
je veux afficher le résultat des saisies dans un champ texte.
voici le code :
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<!-- This file has been downloaded from Bootsnipp.com. Enjoy! -->
<title>calculator - Bootsnipp.com</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet">
<style type="text/css">
/* Basic reset */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
/* Better text styling */
font: bold 14px Arial, sans-serif;
}
/* Finally adding some IE9 fallbacks for gradients to finish things up */
/* A nice BG gradient */
html {
height: 100%;
background: white;
background: radial-gradient(circle, #fff 20%, #ccc);
background-size: cover;
}
/* Using box shadows to create 3D effects */
#calculator {
width: 325px;
height: auto;
margin: 100px auto;
padding: 20px 20px 9px;
background: #9dd2ea;
background: linear-gradient(#9dd2ea, #8bceec);
border-radius: 3px;
box-shadow: 0px 4px #009de4, 0px 10px 15px rgba(0, 0, 0, 0.2);
}
/* Top portion */
.top span.clear {
float: left;
}
/* Inset shadow on the screen to create indent */
.top .screen {
height: 40px;
width: 212px;
float: right;
padding: 0 10px;
background: rgba(0, 0, 0, 0.2);
border-radius: 3px;
box-shadow: inset 0px 4px rgba(0, 0, 0, 0.2);
/* Typography */
font-size: 17px;
line-height: 40px;
color: white;
text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
text-align: right;
letter-spacing: 1px;
}
/* Clear floats */
.keys, .top {overflow: hidden;}
/* Applying same to the keys */
.keys span, .top span.clear {
float: left;
position: relative;
top: 0;
cursor: pointer;
width: 66px;
height: 36px;
background: white;
border-radius: 3px;
box-shadow: 0px 4px rgba(0, 0, 0, 0.2);
margin: 0 7px 11px 0;
color: #888;
line-height: 36px;
text-align: center;
/* prevent selection of text inside keys */
user-select: none;
/* Smoothing out hover and active states using css3 transitions */
transition: all 0.2s ease;
}
/* Remove right margins from operator keys */
/* style different type of keys (operators/evaluate/clear) differently */
.keys span.operator {
background: #FFF0F5;
margin-right: 0;
}
.keys span.eval {
background: #f1ff92;
box-shadow: 0px 4px #9da853;
color: #888e5f;
}
.top span.clear {
background: #ff9fa8;
box-shadow: 0px 4px #ff7c87;
color: white;
}
/* Some hover effects */
.keys span:hover {
background: #9c89f6;
box-shadow: 0px 4px #6b54d3;
color: white;
}
.keys span.eval:hover {
background: #abb850;
box-shadow: 0px 4px #717a33;
color: #ffffff;
}
.top span.clear:hover {
background: #f68991;
box-shadow: 0px 4px #d3545d;
color: white;
}
/* Simulating "pressed" effect on active state of the keys by removing the box-shadow and moving the keys down a bit */
.keys span:active {
box-shadow: 0px 0px #6b54d3;
top: 4px;
}
.keys span.eval:active {
box-shadow: 0px 0px #717a33;
top: 4px;
}
.top span.clear:active {
top: 4px;
box-shadow: 0px 0px #d3545d;
}
</style>
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
</head>
<body>
<div id="calculator">
<!-- Screen and clear key -->
<div class="top">
<span class="clear">C</span>
<div class="screen"></div>
</div>
<div class="keys">
<!-- operators and other keys -->
<span>7</span>
<span>8</span>
<span>9</span>
<span class="operator">+</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span class="operator">-</span>
<span>1</span>
<span>2</span>
<span>3</span>
<span class="operator">÷</span>
<span>0</span>
<span>.</span>
<span class="eval">=</span>
<span class="operator">x</span>
</div>
</div>
<script type="text/javascript">
// Get all the keys from document
var keys = document.querySelectorAll('#calculator span');
var operators = ['+', '-', 'x', '÷'];
var decimalAdded = false;
// Add onclick event to all the keys and perform operations
for(var i = 0; i < keys.length; i++) {
keys[i].onclick = function(e) {
// Get the input and button values
var input = document.querySelector('.screen');
var inputVal = input.innerHTML;
var btnVal = this.innerHTML;
// Now, just append the key values (btnValue) to the input string and finally use javascript's eval function to get the result
// If clear key is pressed, erase everything
if(btnVal == 'C') {
input.innerHTML = '';
decimalAdded = false;
}
// If eval key is pressed, calculate and display the result
else if(btnVal == '=') {
var equation = inputVal;
var lastChar = equation[equation.length - 1];
// Replace all instances of x and ÷ with * and / respectively. This can be done easily using regex and the 'g' tag which will replace all instances of the matched character/substring
equation = equation.replace(/x/g, '*').replace(/÷/g, '/');
// Final thing left to do is checking the last character of the equation. If it's an operator or a decimal, remove it
if(operators.indexOf(lastChar) > -1 || lastChar == '.')
equation = equation.replace(/.$/, '');
if(equation)
input.innerHTML = eval(equation);
decimalAdded = false;
}
// Basic functionality of the calculator is complete. But there are some problems like
// 1. No two operators should be added consecutively.
// 2. The equation shouldn't start from an operator except minus
// 3. not more than 1 decimal should be there in a number
// We'll fix these issues using some simple checks
// indexOf works only in IE9+
else if(operators.indexOf(btnVal) > -1) {
// Operator is clicked
// Get the last character from the equation
var lastChar = inputVal[inputVal.length - 1];
// Only add operator if input is not empty and there is no operator at the last
if(inputVal != '' && operators.indexOf(lastChar) == -1)
input.innerHTML += btnVal;
// Allow minus if the string is empty
else if(inputVal == '' && btnVal == '-')
input.innerHTML += btnVal;
// Replace the last operator (if exists) with the newly pressed operator
if(operators.indexOf(lastChar) > -1 && inputVal.length > 1) {
// Here, '.' matches any character while $ denotes the end of string, so anything (will be an operator in this case) at the end of string will get replaced by new operator
input.innerHTML = inputVal.replace(/.$/, btnVal);
}
decimalAdded =false;
}
// Now only the decimal problem is left. We can solve it easily using a flag 'decimalAdded' which we'll set once the decimal is added and prevent more decimals to be added once it's set. It will be reset when an operator, eval or clear key is pressed.
else if(btnVal == '.') {
if(!decimalAdded) {
input.innerHTML += btnVal;
decimalAdded = true;
}
}
// if any other key is pressed, just append it
else {
input.innerHTML += btnVal;
}
// prevent page jumps
e.preventDefault();
}
}
</script>
</body>
</html>
A voir également:
Recuperer le resultat de la saisis dans une champ input
voici ce que j'ai tenté mais ca passe toujours pas.
<style type="text/css">
/* Basic reset */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
/* Better text styling */
font: bold 14px Arial, sans-serif;
}
/* Finally adding some IE9 fallbacks for gradients to finish things up */
/* A nice BG gradient */
html {
height: 100%;
background: white;
background: radial-gradient(circle, #fff 20%, #ccc);
background-size: cover;
}
/* Using box shadows to create 3D effects */
#calculator {
width: 325px;
height: auto;
margin: 100px auto;
padding: 20px 20px 9px;
background: #9dd2ea;
background: linear-gradient(#9dd2ea, #8bceec);
border-radius: 3px;
box-shadow: 0px 4px #009de4, 0px 10px 15px rgba(0, 0, 0, 0.2);
}
/* Top portion */
.top span.clear {
float: left;
}
/* Inset shadow on the screen to create indent */
.top .screen {
height: 40px;
width: 212px;
float: right;
padding: 0 10px;
background: rgba(0, 0, 0, 0.2);
border-radius: 3px;
box-shadow: inset 0px 4px rgba(0, 0, 0, 0.2);
/* Typography */
font-size: 17px;
line-height: 40px;
color: white;
text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
text-align: right;
letter-spacing: 1px;
}
/* Clear floats */
.keys, .top {overflow: hidden;}
/* Applying same to the keys */
.keys span, .top span.clear {
float: left;
position: relative;
top: 0;
cursor: pointer;
width: 66px;
height: 36px;
background: white;
border-radius: 3px;
box-shadow: 0px 4px rgba(0, 0, 0, 0.2);
margin: 0 7px 11px 0;
color: #888;
line-height: 36px;
text-align: center;
/* prevent selection of text inside keys */
user-select: none;
/* Smoothing out hover and active states using css3 transitions */
transition: all 0.2s ease;
}
/* Remove right margins from operator keys */
/* style different type of keys (operators/evaluate/clear) differently */
.keys span.operator {
background: #FFF0F5;
margin-right: 0;
}
.keys span.eval {
background: #f1ff92;
box-shadow: 0px 4px #9da853;
color: #888e5f;
}
.top span.clear {
background: #ff9fa8;
box-shadow: 0px 4px #ff7c87;
color: white;
}
/* Some hover effects */
.keys span:hover {
background: #9c89f6;
box-shadow: 0px 4px #6b54d3;
color: white;
}
.keys span.eval:hover {
background: #abb850;
box-shadow: 0px 4px #717a33;
color: #ffffff;
}
.top span.clear:hover {
background: #f68991;
box-shadow: 0px 4px #d3545d;
color: white;
}
/* Simulating "pressed" effect on active state of the keys by removing the box-shadow and moving the keys down a bit */
.keys span:active {
box-shadow: 0px 0px #6b54d3;
top: 4px;
}
.keys span.eval:active {
box-shadow: 0px 0px #717a33;
top: 4px;
}
.top span.clear:active {
top: 4px;
box-shadow: 0px 0px #d3545d;
}
</style>
<div id="calculator">
<!-- Screen and clear key -->
<div class="top">
<span class="clear">C</span>
<div class="screen">
<input type="text" name="qte" id="inpresult" value="" style="font-size: 36px; text-align: center; color: red; font-weight: bold;" >
</div>
</div>
<div class="keys">
<!-- operators and other keys -->
<span>7</span>
<span>8</span>
<span>9</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span>1</span>
<span>2</span>
<span>3</span>
<span>0</span>
</div>
</div>
<script type="text/javascript">
// Get all the keys from document
var keys = document.querySelectorAll('#calculator span');
var operators = ['+', '-', 'x', '÷'];
var decimalAdded = false;
const input = document.getElementById("inpresult");
// Add onclick event to all the keys and perform operations
for(var i = 0; i < keys.length; i++) {
keys[i].onclick = function(e) {
// Get the input and button values
var input = document.querySelector('.screen');
var inputVal = input.innerHTML;
var btnVal = this.innerHTML;
// Now, just append the key values (btnValue) to the input string and finally use javascript's eval function to get the result
// If clear key is pressed, erase everything
if(btnVal == 'C') {
input.innerHTML = '';
decimalAdded = false;
}
// If eval key is pressed, calculate and display the result
else if(btnVal == '=') {
var equation = inputVal;
var lastChar = equation[equation.length - 1];
// Replace all instances of x and ÷ with * and / respectively. This can be done easily using regex and the 'g' tag which will replace all instances of the matched character/substring
equation = equation.replace(/x/g, '*').replace(/÷/g, '/');
// Final thing left to do is checking the last character of the equation. If it's an operator or a decimal, remove it
if(operators.indexOf(lastChar) > -1 || lastChar == '.')
equation = equation.replace(/.$/, '');
if(equation)
input.innerHTML = eval(equation);
decimalAdded = false;
}
// Basic functionality of the calculator is complete. But there are some problems like
// 1. No two operators should be added consecutively.
// 2. The equation shouldn't start from an operator except minus
// 3. not more than 1 decimal should be there in a number
// We'll fix these issues using some simple checks
// indexOf works only in IE9+
else if(operators.indexOf(btnVal) > -1) {
// Operator is clicked
// Get the last character from the equation
var lastChar = inputVal[inputVal.length - 1];
// Only add operator if input is not empty and there is no operator at the last
if(inputVal != '' && operators.indexOf(lastChar) == -1)
input.innerHTML += btnVal;
// Allow minus if the string is empty
else if(inputVal == '' && btnVal == '-')
input.innerHTML += btnVal;
// Replace the last operator (if exists) with the newly pressed operator
if(operators.indexOf(lastChar) > -1 && inputVal.length > 1) {
// Here, '.' matches any character while $ denotes the end of string, so anything (will be an operator in this case) at the end of string will get replaced by new operator
input.innerHTML = inputVal.replace(/.$/, btnVal);
}
decimalAdded =false;
}
// Now only the decimal problem is left. We can solve it easily using a flag 'decimalAdded' which we'll set once the decimal is added and prevent more decimals to be added once it's set. It will be reset when an operator, eval or clear key is pressed.
else if(btnVal == '.') {
if(!decimalAdded) {
input.innerHTML += btnVal;
decimalAdded = true;
}
}
// if any other key is pressed, just append it
else {
input.innerHTML += btnVal;
}
// prevent page jumps
e.preventDefault();
}
}
</script>
for(var i = 0; i < keys.length; i++) {
keys[i].onclick = function(e) {
// Get the input and button values
var input = document.getElementById("inpresult");
var inputVal = input.value;
var btnVal = this.innerHTML;
Enfin... ton code est bourré d'erreurs/anomalies...
Je te rappel que si tu as des soucis avec ton code JS ... la première chose à faire c'est de regarder dans la console de ton navigateur si il n'y a pas des erreurs....
Autre chose.. n'hésites pas à mettre des console.log pour voir le contenu de tes variables et ainsi essayer de trouver les éventuelles erreurs....
1- je comprends pas pourquoi mon ancien screen et mon input son superposé ?
<style type="text/css">
/* Basic reset */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
/* Better text styling */
font: bold 14px Arial, sans-serif;
}
/* Finally adding some IE9 fallbacks for gradients to finish things up */
/* A nice BG gradient */
html {
height: 100%;
background: white;
background: radial-gradient(circle, #fff 20%, #ccc);
background-size: cover;
}
/* Using box shadows to create 3D effects */
#calculator {
width: 325px;
height: auto;
margin: 100px auto;
padding: 20px 20px 9px;
background: #9dd2ea;
background: linear-gradient(#9dd2ea, #8bceec);
border-radius: 3px;
box-shadow: 0px 4px #009de4, 0px 10px 15px rgba(0, 0, 0, 0.2);
}
/* Top portion */
.top span.clear {
float: left;
}
/* Inset shadow on the screen to create indent */
.top .screen {
height: 40px;
width: 212px;
float: right;
padding: 0 10px;
background: rgba(0, 0, 0, 0.2);
border-radius: 3px;
box-shadow: inset 0px 4px rgba(0, 0, 0, 0.2);
/* Typography */
font-size: 17px;
line-height: 40px;
color: white;
text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
text-align: right;
letter-spacing: 1px;
}
/* Clear floats */
.keys, .top {overflow: hidden;}
/* Applying same to the keys */
.keys span, .top span.clear {
float: left;
position: relative;
top: 0;
cursor: pointer;
width: 66px;
height: 36px;
background: white;
border-radius: 3px;
box-shadow: 0px 4px rgba(0, 0, 0, 0.2);
margin: 0 7px 11px 0;
color: #888;
line-height: 36px;
text-align: center;
/* prevent selection of text inside keys */
user-select: none;
/* Smoothing out hover and active states using css3 transitions */
transition: all 0.2s ease;
}
/* Remove right margins from operator keys */
/* style different type of keys (operators/evaluate/clear) differently */
.keys span.operator {
background: #FFF0F5;
margin-right: 0;
}
.keys span.eval {
background: #f1ff92;
box-shadow: 0px 4px #9da853;
color: #888e5f;
}
.top span.clear {
background: #ff9fa8;
box-shadow: 0px 4px #ff7c87;
color: white;
}
/* Some hover effects */
.keys span:hover {
background: #9c89f6;
box-shadow: 0px 4px #6b54d3;
color: white;
}
.keys span.eval:hover {
background: #abb850;
box-shadow: 0px 4px #717a33;
color: #ffffff;
}
.top span.clear:hover {
background: #f68991;
box-shadow: 0px 4px #d3545d;
color: white;
}
/* Simulating "pressed" effect on active state of the keys by removing the box-shadow and moving the keys down a bit */
.keys span:active {
box-shadow: 0px 0px #6b54d3;
top: 4px;
}
.keys span.eval:active {
box-shadow: 0px 0px #717a33;
top: 4px;
}
.top span.clear:active {
top: 4px;
box-shadow: 0px 0px #d3545d;
}
</style>
<div id="calculator">
<!-- Screen and clear key -->
<div class="top">
<span class="clear">C</span>
<div class="screen">
<input type="text" name="qte" id="inpresult" value="" style="font-size: 36px; text-align: center; color: red; font-weight: bold;" >
</div>
</div>
<div class="keys">
<!-- operators and other keys -->
<span>7</span>
<span>8</span>
<span>9</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span>1</span>
<span>2</span>
<span>3</span>
<span>0</span>
</div>
</div>
<script type="text/javascript">
// Get all the keys from document
var keys = document.querySelectorAll('#calculator span');
var operators = ['+', '-', 'x', '÷'];
var decimalAdded = false;
const input = document.getElementById("inpresult");
// Add onclick event to all the keys and perform operations
for(var i = 0; i < keys.length; i++) {
keys[i].onclick = function(e) {
// Get the input and button values
var input = document.getElementById("inpresult");
var inputVal = input.value;
var btnVal = this.innerHTML
// Now, just append the key values (btnValue) to the input string and finally use javascript's eval function to get the result
// If clear key is pressed, erase everything
if(btnVal == 'C') {
input.innerHTML = '';
decimalAdded = false;
}
// If eval key is pressed, calculate and display the result
else if(btnVal == '=') {
var equation = inputVal;
var lastChar = equation[equation.length - 1];
// Replace all instances of x and ÷ with * and / respectively. This can be done easily using regex and the 'g' tag which will replace all instances of the matched character/substring
equation = equation.replace(/x/g, '*').replace(/÷/g, '/');
// Final thing left to do is checking the last character of the equation. If it's an operator or a decimal, remove it
if(operators.indexOf(lastChar) > -1 || lastChar == '.')
equation = equation.replace(/.$/, '');
if(equation)
input.innerHTML = eval(equation);
decimalAdded = false;
}
// Basic functionality of the calculator is complete. But there are some problems like
// 1. No two operators should be added consecutively.
// 2. The equation shouldn't start from an operator except minus
// 3. not more than 1 decimal should be there in a number
// We'll fix these issues using some simple checks
// indexOf works only in IE9+
else if(operators.indexOf(btnVal) > -1) {
// Operator is clicked
// Get the last character from the equation
var lastChar = inputVal[inputVal.length - 1];
// Only add operator if input is not empty and there is no operator at the last
if(inputVal != '' && operators.indexOf(lastChar) == -1)
input.innerHTML += btnVal;
// Allow minus if the string is empty
else if(inputVal == '' && btnVal == '-')
input.innerHTML += btnVal;
// Replace the last operator (if exists) with the newly pressed operator
if(operators.indexOf(lastChar) > -1 && inputVal.length > 1) {
// Here, '.' matches any character while $ denotes the end of string, so anything (will be an operator in this case) at the end of string will get replaced by new operator
input.innerHTML = inputVal.replace(/.$/, btnVal);
}
decimalAdded =false;
}
// Now only the decimal problem is left. We can solve it easily using a flag 'decimalAdded' which we'll set once the decimal is added and prevent more decimals to be added once it's set. It will be reset when an operator, eval or clear key is pressed.
else if(btnVal == '.') {
if(!decimalAdded) {
input.innerHTML += btnVal;
decimalAdded = true;
}
}
// if any other key is pressed, just append it
else {
input.innerHTML += btnVal;
}
// prevent page jumps
e.preventDefault();
}
}
</script>
1 - Suffit de jouer avec le CSS (et/ou l'attribut style ) de ton input.
Réduire le font-size, mettre un backgroud transparent.
2 - Si tu avais correctement corrigé ton code comme je te l'ai indiqué... ça marcherait....
Je t'ai dit.. il faut utiliser
input.value
et pas :
input.innerHTML
.... et ça.... PARTOUT dans ton code !
un INPUT .. on le gère avec VALUE (comme les listes déroulante SELECT, les input radio, checkbox ... )
Les autres éléments, ( SPAN, DIV, LABEL ...) on les gère avec innerHTML
<style type="text/css">
/* Basic reset */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
/* Better text styling */
font: bold 14px Arial, sans-serif;
}
/* Finally adding some IE9 fallbacks for gradients to finish things up */
/* A nice BG gradient */
html {
height: 100%;
background: white;
background: radial-gradient(circle, #fff 20%, #ccc);
background-size: cover;
}
/* Using box shadows to create 3D effects */
#calculator {
width: 325px;
height: auto;
margin: 100px auto;
padding: 20px 20px 9px;
background: #9dd2ea;
background: linear-gradient(#9dd2ea, #8bceec);
border-radius: 3px;
box-shadow: 0px 4px #009de4, 0px 10px 15px rgba(0, 0, 0, 0.2);
}
/* Top portion */
.top span.clear {
float: left;
}
/* Inset shadow on the screen to create indent */
.top .screen {
height: 40px;
width: 212px;
float: right;
padding: 0 10px;
background: rgba(0, 0, 0, 0.2);
border-radius: 3px;
box-shadow: inset 0px 4px rgba(0, 0, 0, 0.2);
/* Typography */
font-size: 17px;
line-height: 40px;
color: white;
text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
text-align: right;
letter-spacing: 1px;
}
/* Clear floats */
.keys, .top {overflow: hidden;}
/* Applying same to the keys */
.keys span, .top span.clear {
float: left;
position: relative;
top: 0;
cursor: pointer;
width: 66px;
height: 36px;
background: white;
border-radius: 3px;
box-shadow: 0px 4px rgba(0, 0, 0, 0.2);
margin: 0 7px 11px 0;
color: #888;
line-height: 36px;
text-align: center;
/* prevent selection of text inside keys */
user-select: none;
/* Smoothing out hover and active states using css3 transitions */
transition: all 0.2s ease;
}
/* Remove right margins from operator keys */
/* style different type of keys (operators/evaluate/clear) differently */
.keys span.operator {
background: #FFF0F5;
margin-right: 0;
}
.keys span.eval {
background: #f1ff92;
box-shadow: 0px 4px #9da853;
color: #888e5f;
}
.top span.clear {
background: #ff9fa8;
box-shadow: 0px 4px #ff7c87;
color: white;
}
/* Some hover effects */
.keys span:hover {
background: #9c89f6;
box-shadow: 0px 4px #6b54d3;
color: white;
}
.keys span.eval:hover {
background: #abb850;
box-shadow: 0px 4px #717a33;
color: #ffffff;
}
.top span.clear:hover {
background: #f68991;
box-shadow: 0px 4px #d3545d;
color: white;
}
/* Simulating "pressed" effect on active state of the keys by removing the box-shadow and moving the keys down a bit */
.keys span:active {
box-shadow: 0px 0px #6b54d3;
top: 4px;
}
.keys span.eval:active {
box-shadow: 0px 0px #717a33;
top: 4px;
}
.top span.clear:active {
top: 4px;
box-shadow: 0px 0px #d3545d;
}
</style>
<div id="calculator">
<!-- Screen and clear key -->
<div class="top">
<span class="clear">C</span>
<div class="screen">
<input type="text" name="qte" id="inpresult" value="" style="font-size: 36px; text-align: center; color: red; font-weight: bold;" >
</div>
</div>
<div class="keys">
<!-- operators and other keys -->
<span>7</span>
<span>8</span>
<span>9</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span>1</span>
<span>2</span>
<span>3</span>
<span>0</span>
</div>
<hr class="mb-4">
<div class="row">
<div class="col-md-3"></div>
<div class="col-md-6">
<input onclick="inserer2()" type="button" name="valider" class="btn btn-success btn-block flatbtn" value="Appliquez un pourcentage">
</div>
<div class="col-md-3"></div>
</div>
</div>
<script type="text/javascript">
// Get all the keys from document
var keys = document.querySelectorAll('#calculator span');
var operators = ['+', '-', 'x', '÷'];
var decimalAdded = false;
// Add onclick event to all the keys and perform operations
for(var i = 0; i < keys.length; i++) {
keys[i].onclick = function(e) {
// Get the input and button values
var input = document.getElementById("inpresult");
var inputVal = input.value;
var btnVal = this.innerHTML
// Now, just append the key values (btnValue) to the input string and finally use javascript's eval function to get the result
// If clear key is pressed, erase everything
if(btnVal == 'C') {
input.value = '';
decimalAdded = false;
}
// If eval key is pressed, calculate and display the result
else if(btnVal == '=') {
var equation = inputVal;
var lastChar = equation[equation.length - 1];
// Replace all instances of x and ÷ with * and / respectively. This can be done easily using regex and the 'g' tag which will replace all instances of the matched character/substring
equation = equation.replace(/x/g, '*').replace(/÷/g, '/');
// Final thing left to do is checking the last character of the equation. If it's an operator or a decimal, remove it
if(operators.indexOf(lastChar) > -1 || lastChar == '.')
equation = equation.replace(/.$/, '');
if(equation)
input.value = eval(equation);
decimalAdded = false;
}
// Basic functionality of the calculator is complete. But there are some problems like
// 1. No two operators should be added consecutively.
// 2. The equation shouldn't start from an operator except minus
// 3. not more than 1 decimal should be there in a number
// We'll fix these issues using some simple checks
// indexOf works only in IE9+
else if(operators.indexOf(btnVal) > -1) {
// Operator is clicked
// Get the last character from the equation
var lastChar = inputVal[inputVal.length - 1];
// Only add operator if input is not empty and there is no operator at the last
if(inputVal != '' && operators.indexOf(lastChar) == -1)
input.value += btnVal;
// Allow minus if the string is empty
else if(inputVal == '' && btnVal == '-')
input.value += btnVal;
// Replace the last operator (if exists) with the newly pressed operator
if(operators.indexOf(lastChar) > -1 && inputVal.length > 1) {
// Here, '.' matches any character while $ denotes the end of string, so anything (will be an operator in this case) at the end of string will get replaced by new operator
input.value = inputVal.replace(/.$/, btnVal);
}
decimalAdded =false;
}
// Now only the decimal problem is left. We can solve it easily using a flag 'decimalAdded' which we'll set once the decimal is added and prevent more decimals to be added once it's set. It will be reset when an operator, eval or clear key is pressed.input.innerHTML
else if(btnVal == '.') {
if(!decimalAdded) {
input.value += btnVal;
decimalAdded = true;
}
}
// if any other key is pressed, just append it
else {
input.value += btnVal;
}
// prevent page jumps
e.preventDefault();
}
}
</script>
<style type="text/css">
/* Basic reset */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
/* Better text styling */
font: bold 14px Arial, sans-serif;
}
/* Finally adding some IE9 fallbacks for gradients to finish things up */
/* A nice BG gradient */
html {
height: 100%;
background: white;
background: radial-gradient(circle, #fff 20%, #ccc);
background-size: cover;
}
/* Using box shadows to create 3D effects */
#calculator {
width: 325px;
height: auto;
margin: 100px auto;
padding: 20px 20px 9px;
background: #9dd2ea;
background: linear-gradient(#9dd2ea, #8bceec);
border-radius: 3px;
box-shadow: 0px 4px #009de4, 0px 10px 15px rgba(0, 0, 0, 0.2);
}
/* Top portion */
.top span.clear {
float: left;
}
/* Inset shadow on the screen to create indent */
.top .screen {
height: 40px;
width: 212px;
float: right;
padding: 0 10px;
background: rgba(0, 0, 0, 0.2);
border-radius: 3px;
box-shadow: inset 0px 4px rgba(0, 0, 0, 0.2);
/* Typography */
font-size: 17px;
line-height: 40px;
color: white;
text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
text-align: right;
letter-spacing: 1px;
}
/* Clear floats */
.keys, .top {overflow: hidden;}
/* Applying same to the keys */
.keys span, .top span.clear {
float: left;
position: relative;
top: 0;
cursor: pointer;
width: 66px;
height: 36px;
background: white;
border-radius: 3px;
box-shadow: 0px 4px rgba(0, 0, 0, 0.2);
margin: 0 7px 11px 0;
color: #888;
line-height: 36px;
text-align: center;
/* prevent selection of text inside keys */
user-select: none;
/* Smoothing out hover and active states using css3 transitions */
transition: all 0.2s ease;
}
/* Remove right margins from operator keys */
/* style different type of keys (operators/evaluate/clear) differently */
.keys span.operator {
background: #FFF0F5;
margin-right: 0;
}
.keys span.eval {
background: #f1ff92;
box-shadow: 0px 4px #9da853;
color: #888e5f;
}
.top span.clear {
background: #ff9fa8;
box-shadow: 0px 4px #ff7c87;
color: white;
}
/* Some hover effects */
.keys span:hover {
background: #9c89f6;
box-shadow: 0px 4px #6b54d3;
color: white;
}
.keys span.eval:hover {
background: #abb850;
box-shadow: 0px 4px #717a33;
color: #ffffff;
}
.top span.clear:hover {
background: #f68991;
box-shadow: 0px 4px #d3545d;
color: white;
}
/* Simulating "pressed" effect on active state of the keys by removing the box-shadow and moving the keys down a bit */
.keys span:active {
box-shadow: 0px 0px #6b54d3;
top: 4px;
}
.keys span.eval:active {
box-shadow: 0px 0px #717a33;
top: 4px;
}
.top span.clear:active {
top: 4px;
box-shadow: 0px 0px #d3545d;
}
</style>
<div id="calculator">
<!-- Screen and clear key -->
<div class="top">
<span class="clear">C</span>
<div class="screen">
<input type="text" name="qte" id="inpresult" value="" style="font-size: 36px; text-align: center; color: red; font-weight: bold;" >
</div>
</div>
<div class="keys">
<!-- operators and other keys -->
<span>7</span>
<span>8</span>
<span>9</span>
<span>4</span>
<span>5</span>
<span>6</span>
<span>1</span>
<span>2</span>
<span>3</span>
<span>0</span>
</div>
<hr class="mb-4">
<div class="row">
<div class="col-md-3"></div>
<div class="col-md-6">
<input onclick="inserer2()" type="button" name="valider" class="btn btn-success btn-block flatbtn" value="Appliquez un pourcentage">
</div>
<div class="col-md-3"></div>
</div>
</div>
<script type="text/javascript">
// Get all the keys from document
var keys = document.querySelectorAll('#calculator span');
var operators = ['+', '-', 'x', '÷'];
var decimalAdded = false;
// Add onclick event to all the keys and perform operations
for(var i = 0; i < keys.length; i++) {
keys[i].onclick = function(e) {
// Get the input and button values
var input = document.getElementById("inpresult");
var inputVal = input.value;
var btnVal = this.innerHTML
// Now, just append the key values (btnValue) to the input string and finally use javascript's eval function to get the result
// If clear key is pressed, erase everything
if(btnVal == 'C') {
input.value = '';
decimalAdded = false;
}
// If eval key is pressed, calculate and display the result
else if(btnVal == '=') {
var equation = inputVal;
var lastChar = equation[equation.length - 1];
// Replace all instances of x and ÷ with * and / respectively. This can be done easily using regex and the 'g' tag which will replace all instances of the matched character/substring
equation = equation.replace(/x/g, '*').replace(/÷/g, '/');
// Final thing left to do is checking the last character of the equation. If it's an operator or a decimal, remove it
if(operators.indexOf(lastChar) > -1 || lastChar == '.')
equation = equation.replace(/.$/, '');
if(equation)
input.value = eval(equation);
decimalAdded = false;
}
// Basic functionality of the calculator is complete. But there are some problems like
// 1. No two operators should be added consecutively.
// 2. The equation shouldn't start from an operator except minus
// 3. not more than 1 decimal should be there in a number
// We'll fix these issues using some simple checks
// indexOf works only in IE9+
else if(operators.indexOf(btnVal) > -1) {
// Operator is clicked
// Get the last character from the equation
var lastChar = inputVal[inputVal.length - 1];
// Only add operator if input is not empty and there is no operator at the last
if(inputVal != '' && operators.indexOf(lastChar) == -1)
input.value += btnVal;
// Allow minus if the string is empty
else if(inputVal == '' && btnVal == '-')
input.value += btnVal;
// Replace the last operator (if exists) with the newly pressed operator
if(operators.indexOf(lastChar) > -1 && inputVal.length > 1) {
// Here, '.' matches any character while $ denotes the end of string, so anything (will be an operator in this case) at the end of string will get replaced by new operator
input.value = inputVal.replace(/.$/, btnVal);
}
decimalAdded =false;
}
// Now only the decimal problem is left. We can solve it easily using a flag 'decimalAdded' which we'll set once the decimal is added and prevent more decimals to be added once it's set. It will be reset when an operator, eval or clear key is pressed.input.innerHTML
else if(btnVal == '.') {
if(!decimalAdded) {
input.value += btnVal;
decimalAdded = true;
}
}
// if any other key is pressed, just append it
else {
input.value += btnVal;
}
// prevent page jumps
e.preventDefault();
}
}
</script>
27 janv. 2019 à 21:31
Mais value
27 janv. 2019 à 21:57
Enfin... ton code est bourré d'erreurs/anomalies...
Je te rappel que si tu as des soucis avec ton code JS ... la première chose à faire c'est de regarder dans la console de ton navigateur si il n'y a pas des erreurs....
Autre chose.. n'hésites pas à mettre des console.log pour voir le contenu de tes variables et ainsi essayer de trouver les éventuelles erreurs....
28 janv. 2019 à 11:58
28 janv. 2019 à 12:40
Superposé comment ça ???
Y'a un rapport avec le javascript et ta question initiale ??????
Au passage...
A quoi te sert la ligne
Alors qu'ensuite tu as
Tu gardes l'une ou l'autre.... pas les deux !
28 janv. 2019 à 20:46
que j'ai placé dans :
mais il se trouve que :
1- mon input se touve au dessus du screen ou les saisie s'affiche dans le code initial :
2- rien ne s'affiche dans le input que je saisie