query selector id code example

Example 1: js queryselector find without attribute

var test = document.querySelectorAll('input[value][type="checkbox"]:not([value=""])');

Example 2: query selector js

element = document.querySelector(sélecteurs);

Example 3: queryselector javascript varias clases

element = document.querySelector(selectores);

Example 4: document.queryselector

<div id="foo\bar"></div>
<div id="foo:bar"></div>

<script>
  console.log('#foo\bar');               // "#fooar" (\b is the backspace control character)
  document.querySelector('#foo\bar');    // Does not match anything

  console.log('#foo\\bar');              // "#foo\bar"
  console.log('#foo\\\\bar');            // "#foo\\bar"
  document.querySelector('#foo\\\\bar'); // Match the first div

  document.querySelector('#foo:bar');    // Does not match anything
  document.querySelector('#foo\\:bar');  // Match the second div
</script>

Example 5: queryselector

document.querySelector(".example");