The error ReferenceError: b is not defined at HTMLButtonElement.onclick (/:32:30)
let s;
function b(){
s = document.getElementById(k).innerHtml;
animates();
} <form class="form">
<label>How much do you want to donate</label>
<input type="number" id="k">
<button id="l" onclick="b()">Cal</button>
</form>
>Solution :
no need to do a form for this, also inline events are not preferred use eventListeners in js.
NOTE: I’ve put input’s value as result, but you didn’t say what you exactly want, so I think this will work with you anyway
document.getElementById('l').addEventListener('click', function() {
document.getElementById('result').innerHTML =document.getElementById('k').value;
})<label>How much do you want to donate</label>
<input type="number" id="k">
<button id="l">Cal</button>
<p id="result"></p>