本文实例讲述了JavaScript移除数组内重复元素的方法。分享给大家供大家参考。具体分析如下：

这段JS代码用于从数组中移除重复的元素，比如： ['apple', 'orange', 'peach', 'apple', 'strawberry', 'orange'] 去重后返回：s ['apple', 'orange', 'peach', 'strawberry']

复制代码 代码如下: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'];

下面的代码可以在浏览器中验证

复制代码 代码如下:Remove duplicate elements from an array. <br>

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

</pre>

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

<button>Remove Duplicate</button>

<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>

希望本文所述对大家的javascript程序设计有所帮助。