Javascript CSSStyleDeclaration item Method loop through all style declaration

Introduction

Loop through all the element's style declarations:

Click the button to display all the style properties of the H1 element:

View in separate window 

<!DOCTYPE html>
<html>
<body>
<h1 style="color: red; font-size: 50px;">Loop Through All Style Properties</h1>
<button onclick="myFunction()">Test</button>
<p id="demo"></p>

<script>
function myFunction() {/*from w  ww.ja v a2 s.  c  om*/
  var elmnt, i, txt = "";
  elmnt = document.getElementsByTagName("h1")[0];
  for (i = 0; i < elmnt.style.length; i++) {
    txt += elmnt.style.item(i) + "<br>";
  }
  document.getElementById("demo").innerHTML += txt;
}
</script>
</body>
</html>



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