<td id="design"><?php echo $row['description'];?></td>
<td id="pu"><?php echo $row['prix_unitaire'];?></td>
<td id="qte" contenteditable onkeypress="validate(event)" onkeyup="calcul()"></td>
<td id="montant"></td>
function validate(event) {
if ((event.keyCode < 48 || event.keyCode > 57)) event.returnValue = false;
}
function calcul() {
var pu = document.getElementById('pu').innerHTML;
var qte = document.getElementById('qte').innerHTML;
var montant = pu*qte
document.getElementById('montant').innerHTML = Math.round(montant * 100) / 100;
}
<script type="text/javascript" src="script.js"></script>
10 juil. 2018 à 15:37