JavaScript

1. JavaScript Basics(1) What is JavaScript and what can be done?is a scripting language developed by Netscape to interact with the page.JavaScript programs are executed on the browser sideJavaScript programs can be written at the end of the. js file.

It's interesting to learn about some of the programming quirks of JavaScript, and it's worth summarizing:1. Unknown variable name Create global variable in our usual programming of JavaScript, some people are not very formal, when defining variables,

The perverted bit arithmetic of javascriptvar a = "10" | 0;alert (a);Alert (typeof a);The result is 10,number.This means that the statement can convert the string to number.If:var a = "SSS" | 0;alert (a);The result is 0.parseint ("SSS"), it returns

There are 5 data types in javascript: undefined, null, Boolean, number, String, and typeof to detect the data type.1 undefined:undefined There is only one value, that is Undefined, when declaring a variable with VAR but not initializing it, this

When I implement this with pure CSS. I started using JavaScript and style classes to refine functionality.Then, I have some ideas, I want to use delegated events (event delegate) but I don't want to have any dependencies, insert any library,

This article is based on JavaScript advanced programming three.ECMAScript divides data into two categories: basic data Types and complex data types . There are 5 types of basic data types (also known as simple data types): Undefined, Null, Boolean,

Basic functions of stringOut: Encapsulated document.write ();Many ways to repeat with Java Custom Features:1. Define a method to remove whitespace at both ends of a stringfunction Trim (x) { var i = 0,j = x.length-1; For (

First, the basic grammar 1. Basic syntax and variables 2. Data type 3. Tips Summary 1. Basic syntax and variables1.1 StatementsJavaScript is a line of execution (line), in general, each row is a statement, the statement

              Input Box detection      only allow to enter numbers, otherwise red warning    Submit    This article is from the "Empty" blog, make sure to keep this source http://6738767.blog.51cto.com/6728767/1583073JavaScript example four (input

On the stack overflow problem, in the daily development of JavaScript is very common, Google, the related issues are more. This article is intended to describe how to resolve this type of problem. First look at an example (of course you can do it in

First, script the form elementJavaScript can access forms in an HTML document through the child object Form object of the Document object (the Htmlformelement object in the DOM).1. Get a reference to a formBefore scripting the form, we have to get a

Javascriptkey points of knowledge cardingone. Javascript Process Control The data types commonly used in JS Use of the VAR keyword If–else If–else Switch While For two. Javascript Common Functions 1. String

Research on Web worker multi-thread API in JavaScript, workerapi HTML5 supports APIs such as Web Worker, allowing Web pages to execute multi-threaded code securely. However, Web Worker is actually subject to many restrictions because it cannot truly

ATL-JavaScript Mixed ProgrammingJavaScript hybrid programming-ATL Last update date: Environment:Windows 8.1 64bit English version, Visual Studio 2013 Professional Update1 English version Prerequisites:Basic concepts of COM Author:KagulaIntroduction

Directly return Boolean type processing in the javascript background R recently used jqueyr's ajax background verification to directly return a Boolean value to the foreground and transmit it to the foreground in json format. var result =

Use regular expressions to format and highlight json strings. Json strings are very useful. Sometimes the information returned by some background interfaces is in string format, which is quite readable. In this case, it would be much better to have

JS reverse traversal implementation code, js reverse code The most common Traversal method is the for statement (recursive and while ). When we traverse an array, we usually do this: Copy codeThe Code is as follows:Var arr = [1, 2, 3, 4, 5, 6, 7, 8,

Javascript uses regular expressions to detect ip addresses and ip address Regular Expressions Regular Expression: (2 [0-4] \ d | 25 [0-5] | [01]? \ D ?) \.) {3} (2 [0-4] \ d | 25 [0-5] | [01]? \ D ?) (2 [0-4] \ d | 25 [0-5] | [01]? \ D ?) \.) {3}

JQuery enables multiple buttons to change color. jquery click to change color. The code for this small special effect is very simple, so we will not explain it much, but directly provide the source code. JQuery code: Copy codeThe Code is as follows:

Three. js source code annotation (23) Core/Face3.js   Reprinted please keep this sentence: Wuji-this blog focuses on Agile development and mobile and IOT device research: data visualization, GOLANG, Html5, WEBGL, THREE. JS. Otherwise, the post from