JavaScript,移除,数组,重复元素,方法本文实例讲述了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']
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
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 onclick="check()">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。
JavaScript,移除,数组,重复元素,方法
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