Four uses of this in JavaScript

Every function in JavaScript is an object, so in this var temp=this refers to the current object of the function. This is a keyword in the JavaScript language. It represents an internal object that is automatically generated when the function is run,

How JavaScript determines whether the array is duplicated

This article mainly introduces JavaScript to determine whether the array of repeated methods, involving JavaScript for the array of related operational skills, very practical value, the need for friends can refer to the The examples in this article

JavaScript lets a page appear fade fade background color method

This article mainly introduced the JavaScript lets the webpage appear the fade fade background Color The method, involves the JavaScript operation style the related skill, very has the practical value, hoped this article to be helpful to everybody's

Use of for and iin loops in JavaScript

A for In loop in JavaScript is typically used to traverse an array The first thing to understand is what an array is, an array, which is actually a collection of a set of similar variables. Let's take a look at an array instance that holds a hobby:

JavaScript Tutorial: Ways to optimize IF statements

UGLIFYJS is a tool for compressing and beautifying JavaScript, and in its documentation, I've seen several ways to optimize if statements. Although I have not used it to do some experimental testing, but from here I can see that it does make JS a

JavaScript table interlace Color add mouse to move out and click the effect of the method

Forms of interlacing color, but also a user experience to improve the JS effect. Effect implementation: The color of the form's odd and even rows is different. This prevents users from viewing the data serially.When the mouse moves in a row, it

How to use the Split function in JavaScript

This article is mainly on the use of JS Split function of the introduction, the need for friends can come to the reference, I hope to help youSplit split is the opposite of join, which is used to divide a string into an array of strings.  

How JavaScript gets all the elements in a form

The example in this article describes how JavaScript gets all the element values in a form. Share to everyone for your reference. Specifically as follows: The following JS code can traverse all the elements in the specified form and output the

Example analysis of call and apply usage in JavaScript

 call and apply usage, and use call to implement the JS class inheritance 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 The * * * Rectangle/function Rectangle (len,width) {this.len = len; this.width = width  }/*

How JavaScript gets form Enctype properties

The examples in this article describe the way JavaScript obtains form Enctype properties. Share to everyone for your reference. Specifically as follows: 1 2 3 4 5 6 7 8 9 10 11 12 13-14 Name: Last Name: form data would be

JavaScript uses the Pop method to move the last element usage instance of the divisor group

The following code shows the Pop method of the JS array, which can be used to move the last element of the divisor group, in effect using the array as a stack 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17-18 click the button to

JavaScript Implementation Map Collection

Code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26-27--28 29---30 31--32 33 34 35 36 37 38-39 40 41 42 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81

JavaScript calculates the number of days remaining in the month sample code

This article describes how to use JavaScript to calculate the number of days remaining in the current month on a Web page.Code as follows: The code is as follows:

JavaScript uses this variable to quickly find out how the user selects the radio button

This article mainly introduces JavaScript through this variable to quickly find the user to select the radio button, involving JavaScript in the use of this variable technique, very practical value, the need for friends can refer to the The

JavaScript creates an object and operates on the use of object properties

This article mainly introduces JavaScript to create an object and manipulate the use of object properties, examples of JavaScript using the object class to define objects and properties of the use, the need for friends can refer to the This

JavaScript dialog box Use method

JavaScript dialog box using methods, there are warning boxes, confirmation box, prompt box usage and syntax, you refer to use it1. Warning box warning boxes are often used to ensure that users can get certain information.   When the warning box

Example analysis of innerHTML usage in JavaScript

This article mainly introduces the use of innerHTML in JavaScript, examples of practical innerhtml to get the content of the corresponding elements of using skills, the need for friends can refer to the This example describes the innerHTML usage

An introduction to the immediate execution function expression in JavaScript

This article mainly introduced the JavaScript in the immediate execution function expression Introduction, this article emphatically explained what is calls the function expression immediately, needs the friend to be possible to refer to under

COM that directly references Microsoft in JavaScript to generate word

  Direct reference to Microsoft's COM is to generate word, the following is a description of the implementation of the JavaScript code The code is as follows:

Summary of self and this usage in JavaScript

  This article is mainly to the JavaScript in the self and this usage in a detailed summary of the introduction, the need for friends can come to the reference, I hope to help you. One, the cause that day to Prototype.js opened to see, just to

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