use strict

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

Strict modeECMAscript 5 Adds a strict mode of operation, which means that JavaScript runs under more stringent conditions. Mainstream browsers, including IE 10, have supported him, and many big projects have embraced him, defining the purpose of

The use of Phantomjs to do a screenshot of the economy is applicable, but its API is less, do other functions is more laborious. For example, its own web Server Mongoose can support only 10 requests at a time, and it is impractical to expect him to

1. This in the global scope In strict mode, in the global scope, this points to the Window object "Use strict"; Console.log ("strict mode"); Console.log ("This in global scope"); Console.log ("this.document = = Document",

Blacklist schema: Copy Code code as follows: /** * Created by Ycxj-wanglihui on 2014/5/28. */ ' Use strict '; var mongoose = require (' Mongoose ');var Schema = Mongoose. Schema; 1. Temporary shielding 2. Permanent Shieldingvar

Original source: https://my.oschina.net/blogshi/blog/280400 Absrtact: Voluminous wrote a lot of the recent construction projects of some experience, for the construction of angular project is really not in harmony with the previous front-end

In-depth understanding of Strict Mode and criptstrict in javascript The strict mode introduced in ECMAScript5 allows the JavaScript runtime environment to process the most common and difficult-to-discover errors in the development process

Previously translated an article, introduced by the ES2015 the Deconstruction assignment syntax introduces the module, can let the packing tool (browserify) finally compiles the code quantity to minimize.But in the Webpack 1.X version is unable to

function definition and invocationDefine a function, in JavaScript, to define the function in the following way:function ABS (x) {if (x >=0) {return x;}else{Return-x;}}The above definition of the ABS () function is as follows:function indicates that

The famous Schwartzian conversion in Perl, whose background mainly involves sorting problems: For example, sort alphabetically by file name, with the following code: Copy CodeThe code is as follows: Use strict; Use warnings; My @files = Glob

I recently wrote a project that involved the function of preventing irrigation. So I designed the blacklist middleware and shared it with you. I also hope you can make good suggestions. The Blacklist Schema: The Code is as follows: /*** Created

As we know, JavaScript is a flexible language. Its flexibility also brings a lot of pits, and of course some are design flaws. Like what A variable is assigned without a declaration, and the default is a global variable, such as(function () {a =

The front-end development environment is ready and we are ready to begin development.Front-end development of the main language is JavaScript, which is a scripting language, there is no compiler, there is no compiler to give us a grammar check, how

Executing in the globalLet's see what this is in the global.first, in the browser :Console.log (this); // Window {speechsynthesis:speechsynthesis, caches:cachestorage, Localstorage:storage, Sessionstorage:storage,

1. When a block of code is try { ... } wrapped, it means that some errors may occur during the execution of the Code, and in the event of an error, the subsequent code is no longer executed and jumps to the catch block instead. catch (e) { ... }the

Long time no reactnative, write a how to implement the splash screen (Splash) article it.Attention:(1) How to switch pages.(2) How to use the timer timermixin.(3) How to use the animation effect.(4) How to load Android Project resources (images).1.

Strict mode allows you to find errors earlier, because those that are prone to errors in the program are identified   turned on strict mode: the JavaScript engine that "use strict" does not support ignores it and treats it as an unassigned string.

ArticleDirectory Strict Mode) JSON Since its launch, the ecmascript5 specification has had a significant impact on the development of JavaScript. This article is a blog post I translated from John resig (author of jquery ).

AngularJs dynamic loading module and dependency Injection Not to mention nonsense. Go to the topic... First, let's look at the file structure: Angular-ocLazyLoad --- demo folder Scripts --- framework and plug-in folder angular-1.4.7 --- angular does

1. do: 1) form:Do 'filename ';Note:Here, single quotes must be added to filename; otherwise, an error will occur;Filename can be any suffix or even has no suffix. Do not ask for pl or pm. 2) do:Do 'filename'First, you must read the filename file.