taking input and passing to js using html code example
Example 1: How to Pass Parameter in JavaScript Function From Html
<!DOCTYPE html>
<html>
<head>
<title>function parameters javascript</title>
</head>
<body>
<button onclick="myfunctionName('rohan')">Click</button>
<script type="text/javascript">
function myfunctionName(a){
alert(a);
}
</script>
</body>
</html>
Example 2: javascript function with input value
<button class="btn btn-primary" onclick="transmit({search: document.getElementById('search_id').value});">
<span class="glyphicon glyphicon-search"></span>
</button>