I'm creating a calculator, using HTML and JavaScript. My goal was that it had a button that allows the user to delete the last value entered (for example, the user types the number 9 and then 8 and form 98 , but he wants to delete the%
I would like a JavaScript code to solve this problem.
Use method substring , input.value = inputText.substring(0,inputText.length-1);
<input id="input" type="text"/>
<button onclick="apagar()">Apagar</button>
<script>
function apagar() {
let input = document.getElementById('input');
let inputText = input.value;
input.value = inputText.substring(0,inputText.length-1);
console.log(input.value);
}</script> You can use the slice function:
var str=document.getElementById("campo-com-o-valor").value;
str = str.slice(0, -1);