call a js function from html button code example
Example: how to call a function with a button in javascript
<script>
function myFunction()
{
document.write("<h1>HELLO</h1>")
}
</script>
<button onclick="myFunction()">Click</button><script>
function myFunction()
{
document.write("<h1>HELLO</h1>")
}
</script>
<button onclick="myFunction()">Click</button>