sort json array

1. Array de-weight/*method One: 1, ' 1 ' will be considered the same; all hash objects, such as {x;1},{y:1}, will be considered the same//10ms*/Array.prototype.unique=function(){ varnewarr=[],obj={}; for(vari=0,len= This. length;i){

Php basic knowledge Summary (1) array, basic knowledge array I. Sorting1. asort-Positive Sorting to maintain the index relationship2. arsort-reverse sorting to maintain the index relationship3. sort -- sorting from the lowest to the highest4. ksort -

Php basic knowledge summary (1) array, basic knowledge array. Php basic knowledge summary (1) array, basic knowledge array 1, sorting 1, asort -- forward sorting, maintaining the index relationship 2, arsort -- reverse sorting, maintain the index

first, an array of related operations1. Definition(1) var arr=[1, ' abc ', function () {alert (3333);},[333,444]];   (2) var arr=new Array (12,5,8,9); If you put only one number, set the length (3) [] to a slightly higher performance because the

Preface A very common requirement for sorting an array. Especially at the back end. Of course, the front end also has this demand. Of course, array ordering is a ready-made method. The sort () method. Let's take a look at this first. Standard

var sortby = function (filed, rev, primer) {Rev = (rev)? -1:1;return function (A, b) {A = a[filed];b = b[filed];if (typeof (primer)! = ' undefined ') {A = Primer (a);b = Primer (b);}if (a if (a > B) {return Rev * 1;}return 1;}};var obj = [{b: ' 3 ',

First, we introduce the sort () method built in JS. By default, this method sorts the elements in an alphabetical array, more precisely, by the order of character encoding. See the following example: When an element in an array is a numeric

ObjectiveSorting on an array is a very common requirement. Especially in the backend. Of course, the front end also has this demand.Of course, array sorting is a ready-made method. That's the way it is sort() .Let's start by looking at this.Standard

If you are the same as me (I am afraid you are), so far, this should be your experience in JSON Two months ago, youNeverI have heard of JSON You heard this word a month ago but didn't pay attention to it. A week ago, you found that this word was

Objective A very common requirement for sorting an array. Especially at the back end. Of course, the front end also has this demand. Of course, array ordering is a ready-made method. The sort () method. Let's take a look at this first. Standard