JavaScript

Use JavaScript and WebGL to draw the Earth "translation"Original translation: Using JavaScript and WebGL to draw the Earth "translation"WebGL is probably the most interesting of all of our known html5api, and with this API we can create cool 3D

As we all know, JavaScript has always had problems with floating-point numbers, such as the 0.2+0.1 result is 0.30000000000000004.Here is my solution, put the code first:varCalmath = (function() { varIsfloat =function(a) {varReg

123456 - +Test environment: Version 40.0.2214.115 mTest results: A represents the complete substring of the match, such as: b indicates the successful part of the match, such as: LT c indicates the subscript of the matched complete

The JavaScript language design is not rigorous enough, and many places will be wrong.For example, consider the following scenario.Now, we want to determine whether a global object MyObj exists and declare it if it doesn't exist. The algorithm

JavaScript for full selection, inverse selection and full selectionHTML code: Untitled document Eat put eat 2 Eat 3 eat 5 Eat 6 Eat put 7 Eat put 8JavaScript for full selection, inverse selection and no selection (one)

First, preface After learning the JavaScript event, the individual summed up the cross-browser Event object class library, convenient for later use, is now shared to everyone. Ii. Event Object Encapsulation Encapsulates the operation of the browser

JavaScript data structure and algorithm---stackin the previous blog introduced the following table, the list is the simplest kind of structure, but if you want to deal with some of the more complex structure, the list is too primitive, so we need

Advanced object-oriented and prototype--common tricksPrototype schema creation object also has its own shortcomings, it omits the constructor parameter initialization of the process, the disadvantage is that the initialized values are consistent.

1.javascript How to select a checkbox, how to set it invalid?Document.all.cb1[0].disabled = true; What are the commands of the 3 pop-up message reminders in 2.js (Warning window, confirmation window, Information Entry window)? What is the difference

/*Factory mode function CreateObject (name,age) {var obj = new Object ();//Create a new object obj.name=name;//the properties of the new object obj.age=age; Obj.run=function () {//New object method return this.name+ "," +this.age+ "... running.";}

Recently in reading Requirejs 2.1.15 source code, the source code at the beginning of the definition of a series of variables, there are 4 regular expressions:var commentregexp =/(\/\* ([\s\s]*?) \*\/| ([^:]|^) \/\/(. *) $)/mg,

SortBy:var collection = [' John ', ' petteri ', ' Antti ', ' Joonas ', ' Zhentian ']; var sorted = _.sortby (collection); // [' Antti ', ' John ', ' Joonas ', ' petteri ', ' Zhentian ']var collection = [' John ', ' petteri ', ' Antti ', ' Joonas ', '

JavaScript defines an object through function and adds the toString () method to the object for instance analysis This article describes how to use JavaScript to define objects by using functions and add the toString () method to objects. Examples

JQuery finds the highest element on a webpage, and jquery finds the webpage Element This example describes how jQuery finds the highest element on a web page. Share it with you for your reference. The details are as follows: This JS Code uses

JavaScript determines which radio button is selected when a form is submitted. javascriptradio This example describes how to use JavaScript to determine which radio button is selected when a form is submitted. Share it with you for your reference.

How to assign values to input JavaScript function parameters using a parameter name This article describes how to assign values to input JavaScript function parameters by using parameter names. The example shows how to use javascript function

JavaScript method for simulating parabolic motion in gravity state This article mainly introduces the method of simulating the parabolic motion of JavaScript in the gravity state. The example analyzes the method of simulating the movement of

Jquery implements the method to flip fadeIn display This article mainly introduces jquery's method for implementing the display of fadeIn. The example analyzes the usage skills of the fadeIn method in jQuery. For more information, see    This

ECMAScript 5 Strict Mode introduction, ecmascriptstrict Strict Mode is a new feature of ECMAScript 5. It allows you to place the entire program or a function in a "Strict" operating context. This strict context prevents some specific operations and

Introduction to the usage of JavaScript date types This article describes how to use the JavaScript date type. This article describes how to obtain the number of days of a month, obtain the time zone, calculate the running time, and delete the