How to remove repeated elements in an array using JavaScript _ javascript skills

This article describes how to remove repeated elements from an array by using JavaScript. The example shows how to use javascript to traverse arrays and delete them, for more information about how to remove repeated elements from an array by using JavaScript, see the following example. Share it with you for your reference. The specific analysis is as follows:

This JS code is used to remove repeated elements from the array, such as ['apple', 'Orange ', 'peach', 'apple', 'strawberry ', 'Orange '] After deduplication, return: s ['apple', 'Orange', 'peach ', 'strawberry']

The Code is as follows:

Function removeDuplicates (arr ){
Var temp = {};
For (var I = 0; I <arr. length; I ++)
Temp [arr [I] = true;
Var r = [];
For (var k in temp)
R. push (k );
Return r;
}
// Usage
Var fruits = ['apple', 'Orange ', 'peach', 'apple', 'strawberry ', 'Orange'];
Var uniquefruits = removeDuplicates (fruits );
// Print uniquefruits ['apple', 'Orange ', 'peach', 'strawberry '];

The following code can be verified in a browser:

The Code is as follows:

Remove duplicate elements from an array.

     var fruits = ['apple', 'orange', 'peach', 'apple', 'strawberry', 'orange'];

Note 'Orange 'is duplicate in fruits array. Click to remove duplicate elements from fruits array:

Remove Duplicate
Script
Function removeDuplicates (arr ){
Var temp = {};
For (var I = 0; I <arr. length; I ++)
Temp [arr [I] = true;
Var r = [];
For (var k in temp)
R. push (k );
Return r;
}
Function check (){
Var fruits = ['apple', 'Orange ', 'peach', 'apple', 'strawberry ', 'Orange'];
Var uniquefruits = removeDuplicates (fruits );
Alert (uniquefruits );
}
Script

I hope this article will help you design javascript programs.