JavaScript

Original: You may not know some of the JavaScript artificeHere is a record of the previous learning a variety of books and articles inside the JS tips, share to everyone, but also for their own inspection, but also for those who found to create and

/*Basic JavaScript Learning SummaryThis summary uses the DW to write, in order to debug conveniently, will affect the test part to write in the annotation form ****///1, how to place JavaScript, can be implemented////2, the location of the

This in the JavaScript languageBecause of the nature of its run-time bindings, this meaning in JavaScript is much richer, and it can be a global object, the current object, or any object, depending on how the function is called. The invocation of a

If you want to do the following, each time you refresh the page produces a color,In fact, it's very simple, the fundamental core of the random color is the question of a six-digit, JavaScript random number that is created with the mechanism.And this

memoization is a very useful optimization technique that caches the corresponding results produced by a particular input. Such cumbersome lookups and iterative computations can be reduced as much as possible.Its basic idea is that for specific

Numeric and string conversionsIn a blog post I wrote a string cut here I write down, converting between strings and numbers.NumberThe simple thing is to convert a numeric string into an integer.The code is as follows:var"12345";varNumber1//num_a的值是:

1. JavaScript's object-oriented is prototype-based;2. JavaScript is a function to represent the class, but this function can use this, you can declare properties and methods inside;You can also say upside down, if a common function uses the This

Open the jquery source file today (jquery-1.8.3) and see how the jquery initialization process is(function( window, undefined ) {    // ....})( window );Beginning to understand this writing, after a few searches finally understand its usage and why

This code is I highcharts from the code of the transformation out of, very grateful to Highcharts author, first chain highcharts address http://www.highcharts.com/, (highcharts Chart code is very good, Super powerful, we can try it!The following

Javascript class declaration Declare function Person (name, age) { Num = 5; This. name = name; This. age = age; This.info = function () { Alert ("My information:" + this. name + this. age +""); } }   Alert (Person. num ); Var p1 = new Person

Js implements a method similar to Sina Weibo's homepage content for gradual display, and the homepage content for gradual display The example in this article describes how js achieves a gradual effect similar to Sina Weibo's homepage content. Share

About the = Operator and if Statement of js As we all know, these two are related to boolean values. The operator = returns a Boolean value, and the if () or ternary operator? : Boolean values are determined. In js, The = Operator and = operator are

Class array objects in JavaScript, javascript Array A long time ago, I knew that I could convert arguments to an array: []. slice. call (arguments) becauseArguments is a class array object, so this can be used. But I still don't know what it is

Css uses the document structure to add styles and css styles to the list. In a recent project, the customer asked for a rough display of the first three items in the News list. Because the news list is updated every day, the document structure is

Canvas draws a bounce ball and canvas draws a ball canvas multi-bounce ball Canvas draws a bounce ball.

Js variable object scope chain Executable code: Global, function, evalContext type created during code execution: global context, function context, and eval ContextExecution context (EC) attributes: Variable object (vo), this, scope chain

Jquery uses the remove () method to delete a specified class sub-element, jqueryremove This example describes how jquery uses the remove () method to delete a specified class sub-element. Share it with you for your reference. The specific

Implement blocking instances in nodejs, while nodejs blocks instances. The inherent single-Thread Programming and asynchronous callback functions in node. js make us sometimes enjoy the worry. First, how can a single thread of node. js achieve high

JS uses ajax to Dynamically Retrieve Data Display from xml files This article mainly introduces how JS uses ajax to dynamically obtain data display from xml files. The example shows how javascript uses Ajax to operate XML files, which has some

Talking about events in jQuery and about jQuery events JQuery event first 1. Event binding in JQuery In fact, the standard event binding in JQuery is written as follows: (as follows) Copy codeThe Code is as follows:$ ("# Btn"). bind ("click",