what is a function argument javascript code example

Example 1: javascript function variable arguments

function foo() {
  for (var i = 0; i < arguments.length; i++) {
    console.log(arguments[i]);
  }
}

foo(1,2,3);
//1
//2
//3

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>