JavaScript

Today, when writing JS, write to more than 500 lines, the feeling code has been very difficult to see. Think of C # code has folding function, is not JS also have it. Found in the options, there is no relevant setting function, so the Internet to

Specification of Modules First think about why the module is important. Because of the module, we can more easily use other people's code, want what function, loaded what module. However, this has a prerequisite, that is, we must write the same way

㈠html file & Lt;meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "> No. admin Password Email Contact Way Group class registration Time remarks 1 John 345621 hello@163.com 12345678987 1 2010-12-01

Media Player Control Player.controls.play (); PlayPlayer.controls.stop (); Stop itPlayer.controls.pause (); Time outPlayer.controls.currentPosition returns the current time position (in seconds) of the playback

The time that the database is fetched to do is generally: Thu Nov 18:29:21 gmt+0800 This format When using JST to dynamically render the template, this will be output directly to the page by string, so you need to convert the time into a normal 2010-

We know that each key on the keyboard corresponds to a code, tapping the keyboard, in fact, the computer hardware through the logic gate circuit to generate binary digits to represent this code, and then passed to the CPU. The following is a summary

I. Overview In addition to normal operating mode, ECMAscript 5 adds a second mode of operation: "Strict mode" (strict modes). As the name suggests, this pattern allows JavaScript to run under more stringent conditions. The purpose of establishing a

http://alpha.wallhaven.cc/wallpaper/33246 In the first part of this article, I talked about what modules are, why developers use them, and how to implement modules in your program in different ways. In this second part, you will answer what the

1. In JavaScript, first let's see that innerHTML and innertext can be used to get the contents of a DOM element. We can write this: (1) When using innertext In JS we, The results obtained are as follows: (2) when using innerHTML Run this code

In the global fashion of mobile devices, more and more companies are working to build a Web site or application that is optimized on the mobile side to publish and sell their products. And this boom in mobile development is inseparable from

The 22nd Chapter Advanced Technique Advanced functions: (1) Security type detection Object.prototype.toString.call (value) = = "[Object array]"; instrumentation array The ToString () method of object cannot detect the function name of a non-native

The 4.12 expression evaluates the eval () eval () to interpret a string that consists of JavaScript source code and produces a value. Eval () is a global function. The 4.12.1 eval () eval () has only one argument, and if the incoming

1 Preface The rigorous model introduced in ECMASCRIPT5 allows the developer to have a "better" JavaScript language by allowing JavaScript to run the environment to make and present different processes for the most common and difficult bugs in the

Before learning apply (), we have to understand the role of this and how to use it, and refer to my previous article, "Fast Understanding the usage and pitfalls of this in JavaScript." Of course if you are already familiar with this information,

Copy, in JS, is divided into shallow copy and deep copy. How are these two differentiated? And how is it achieved?The distinction between shades of a copyFirst of all, in JS, is divided into basic data types and complex data types,Underlying data

ObjectiveRecently in the reading JavaScript related knowledge point, saw a foreigner of a JavaScript for WEB developers, encountered a knowledge blind spot, feel that the foreigner writes very clearly very thorough, the record to deepen the

String.prototype.charCodeAtString.fromCharCode ()String.prototype.toUtfArray = function () {return This.split ("). Reduce (function (A, c) {var code = c.charcodeat (0); A.push (Code >> 8); A.push (code & 0X0FF); return A;}, []);};

HTML5 Events Event Description domcontentloaded Triggers after the DOM tree is formed (at the same time, pictures, CSS, and JavaScript may still be loading). In this event, the script runs earlier than the

Get current timevar dt = new Date ();alert (DT);Incoming timevar dt1 = new Date ("2017-08-12");alert (DT1);//Gets the time object (in milliseconds)var DT2 = Date.now ();alert (DT2);//var dt3 = new Date ();Get yearAlert (Dt3.getfullyear ());Get

In the actual project, we often have the following requirements:Get the value of a key from a map, if you find that the value of the corresponding key is NULL, create a value for the key (typically the initial value), and then save the value back to