JavaScript array unique
In this Tutorial we want to describe a code that help you in understanding
array unique. The program uses JavaScript as scripting language. The code
try to explain you a HTML Page that include a script, inside the script the
variable arr instantiate an array object. This variable is initialized with the
array object element. The document. write print the Array before removing
duplicate element.
Array.Array.Unique - This function return you the unique element with
no duplicate element.
Finally the document. write print the array after removing duplicate
element.
Javascript_array_unique.html
<html>
<head>
<title>JavaScript Array unique</title>
<h1>JavaScript Array unique</h1>
<hr></hr>
<script type="text/javascript">
function unique(arrayName)
{
var newArray=new Array();
label:for(var i=0; i<arrayName.length;i++ )
{
for(var j=0; j<newArray.length;j++ )
{
if(newArray[j]==arrayName[i])
continue label;
}
newArray[newArray.length] = arrayName[i];
}
return newArray;
}
</script>
<script>
var arr = new Array(0,2,4,2,6,4,8,6,10);
document.write("Array before removing
duplicate element: "+arr+"<br>");
document.write("Array after removing
duplicate element: "+unique(arr));
</script>
</head>
<body>
</body>
</html>
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Output of the program
Download
Source code
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