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Passing HTML input value as a JavaScript Function Parameter

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别跟我提以往
别跟我提以往 2020-12-13 15:52

I am new to JavaScript, and I\'m trying to figure out how to pass user-inputted values as a parameter to a JavaScript function. Here is my code:
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  • 离开以前
    2020-12-13 16:27

    One way is by using document.getElementByID

    <body>
<h1>Adding 'a' and 'b'</h1>

  a: <input type="number" name="a" id="a"><br>
  b: <input type="number" name="b" id="b"><br>
  <button onclick="add(document.getElementById('a').value,document.getElementById('b').value)">Add</button>

<script>
  function add(a,b) {
    var sum = parseInt(a) + parseInt(b);
    alert(sum);
  }
</script>
</body>
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