arr.sort(function(a,b){ return a-b;//升序 return b-a;//降序 }) console.log(arr);//[1, 2, 10, 20] 最后友情提示,sort()方法会直接对Array进行修改,它返回的结果仍是当前Array: vara1 = ['B', 'A', 'C'];vara2 =a1.sort(); a1;//['A', 'B', 'C']a2;//['A', 'B', ...
alert("降序排列:"+myarray); myarray.st(sortAsc); alert("升序排列:"+myarray); myarray1.sort(function(){return1});//注:js默认的sort对此排序结果跟这个不一样,其排序方式还暂不理解alert("逆序排列:"+myarray1);//-->
fruits.sort(); Try it Yourself » More Examples Below ! Description Thesort()method sorts the elements of an array. Thesort()method sorts the elements as strings in alphabetical and ascending order. Thesort()method overwrites the original array. ...
The sort() method is used to sort the elements of an array. Version Implemented in JavaScript 1.1 Syntax sort(compareFunction) Parameters compareFunction: The function defines the sort order. If it is not specified the array is sorted in dictionary order, not in numeric order. For example, "...
整体来看,sort 方法是快速排序和插入排序的集合。横向对比快速排序和插入排序 当n 足够小的时候,插入排序的时间复杂度为 O(n) 要优于快速排序的 O(nlogn),所以 V8 在实现 JS sort 时,数据量较小的时候会采用了插入排序。 而当数据量 > 10 的时候,就采用了快速排序,时间复杂度 O(nlogn) 非常具有优势。
对字符串数组进行排序：let array = [ 'zebra', 'banana', 'apple', 'hello' ]; array.sort();...
使用sort在实际使用中主要是实现排序,分为升序和降序,官网的解释是 - If compareFunction(a, b) returns a value > than 0, sort b before a. 如果返回的值大于0 ,则 b在a前面 - If compareFunction(a, b) returns a value < than 0, sort a before b. ...
}; } var result = arraySort(arr, function (a, b) { return a.two.localeCompare(b.two); }); console.log(result); // [ { one: 'z', two: 'a' }, // { one: 'w', two: 'b' }, // { one: 'x', two: 'c' }, // { one: 'y', two: 'd' } ]Multiple...
The Array shift() Method The Array push() Method The Array pop() Method Syntax array.unshift(item1,item2, ...,itemX) Parameters TypeDescription item1 item2 .. itemXThe item(s) to add to the array. Minimum one item is required. ...
[Microsoft.JScript.JSFunction(Microsoft.JScript.JSFunctionAttributeEnum.HasThisObject, Microsoft.JScript.JSBuiltin.Array_sort)] public static object sort(object thisob, object function); Parameters thisob Object The object that this method is acting upon. function Object The function to use to co...