find duplicate values in array javascript

Using the prototype function (prototype), you can define some very convenient custom functions, and implement various custom functions.The prototype function (prototype) in JavaScript works by creating a prototype property for each time a new

There are two ways to create arrays in array creation JavaScript, the first of which is to use the array constructor:varARR1 =NewArray ();//create an empty arrayvarARR2 =NewArray (20);//create an array with 20 itemsvarARR3 =NewArray ("Lily", "Lucy",

In general, the interview process has gained a lot. The main reason is to identify the gap between yourself and the narrow knowledge. It is necessary to crack down on self-confidence. Here is a comprehensive summary about the de-duplication of

In general, the interview process has gained a lot. The main reason is to identify the gap between yourself and the narrow knowledge. It is necessary to crack down on self-confidence. Here is a comprehensive summary about the de-duplication of

$.each (Array, [callback]) traversal Unlike the $.each () method of the JQuery object, this method can be used to sample any object (not just an array, oh ~). The callback function has two parameters: the first is the index of the member or array

Personal Summary:1. Memory recovery mechanism-tag clear algorithm: Starting from the root (global variable) to detect descendant variables, any root variables can not reach the variable will be marked as memory garbage.This is the third chapter of

The  jquery array processing is very convenient and powerful, and one-step encapsulates a number of functions that are not accessible to native JS arrays. Here's a look at the power of the jquery array.   $.each (Array, [callback]) traversal The $

With the development of the network and the speed of the machine, more and more websites use the rich client technology. Now Ajax is one of the most popular ways. JavaScript is an interpreted language, so it can't reach the level of C/java and so on,

jquery array processing is very convenient and powerful, one step packaging a lot of native JS arrays can not be matched to the function. Here's a look at where the power of the jquery array is.$.each (Array, [callback]) traversalUnlike the $.each ()

7 JavaScript interview questions for true and false javascript questions The following seven JavaScript interview questions should be asked before the interview. Otherwise, your time may be wasted.1. What are the two methods for creating JavaScript