JavaScript method to remove duplicate elements from array_javascript skills

The example in this article describes how to remove duplicate elements from an array using JavaScript. Share it with everyone for your reference. The specific analysis is as follows:

This JS code is used to remove duplicate elements from an array, such as: ['apple', 'orange', 'peach', 'apple', 'strawberry', 'orange'] Return after deduplication: s ['apple', 'orange', 'peach', 'strawberry']

Copy code 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'];

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Copy code The code is as follows:

Remove duplicate elements from an array.

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

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

Remove Duplicate
<script><br> function removeDuplicates(arr) {<br> var temp = {};<br> for (var i = 0; i < arr.length; i )<br />          temp[arr[i]] = true;<br /> var r = [];<br /> for (var k in temp)<br />          r.push(k);<br /> Return r;<br /> }<br /> function check() {<br /> var fruits = ['apple', 'orange', 'peach', 'apple', 'strawberry', 'orange'];<br /> var uniquefruits = removeDuplicates(fruits);<br /> alert(uniquefruits);<br /> }<br /> </script>

I hope this article will be helpful to everyone’s JavaScript programming design.