The function presented bellow can be used to shuffle /randomize array items in JavaScript.
// receive an array and return it with the items shuffled /randomized function shuffle(ar){ for(var j, x, i = ar.length; i; j = Math.floor(Math.random() * i), x = ar[--i], ar[i] = ar[j], ar[j] = x); return ar; }- Here is a simple example:
<h4>Example shuffle array in JavaScript</h4> <p>Initial array: ar1 = ['a', 'b', 'c', 1, 2, 3];</p> <button id='btntst'>Test Shuffle Array</button> <script> // receive an array and return it with the items shuffled /randomized function shuffle(ar){ for(var j, x, i = ar.length; i; j = Math.floor(Math.random() * i), x = ar[--i], ar[i] = ar[j], ar[j] = x); return ar; } var ar1 = ['a', 'b', 'c', 1, 2, 3]; //when click on the #btntst, show alert box with the items of ar1 document.getElementById('btntst').addEventListener('click', function(){ ar1 = shuffle(ar1); alert(ar1); }); </script>
<img src="image.jpg" usemap="#map1"> <map name="map1"> <area shape="rect" coords="9, 120, 56, 149" href="#"> <area shape="rect" coords="100, 200, 156, 249" href="#"> </map>
#id { overflow: auto; }
document.getElementById("id").onmouseover = function(){ document.write("Have Good Life"); }
if(isset($_GET["id"])) { echo $_GET["id"]; }