codeschool typescript

This lesson covers using your first TypeScript Interface and what happens to the Interface when it was compiled down to Jav Ascript.Define the interfaces:// interfaces.ts Interface person { interface socialnetwork{ title:string; GetPeople (): person[];}Use interface: from ' ./interfaces ' ; class Socialnetworks implements socialnetwork{ "Facebook"; GetPeople () { return'John'}] }}new Socialnetworks ();To notice this, interfa

Long time not to blog Park, today occasionally to stroll, found that there are many articles written JavaScript, such as Object-oriented, code organization and management of what, after seeing a sentence throat, do not spit unpleasant-"abandon" javascript, embrace typescript bar, Don't waste your youth, your life! This is a piece of advice I give to all JavaScript front-end programmers. Do not explain, can understand the nature will understand.Never h

the reader can organize the code according to his own ideas, thus writing a new game engine. Plus now with the typescript tool, you can intuitively use the "class definition" syntax and provide compile-time type checking and code refactoring to help you write concise code and improve development efficiency.So I used typescript to reorganize and write the sample code in the book, and to add some of my own d

This article will briefly introduce several basic types of typescript. There are several basic types of typescript: Boolean Number String Array Tuple Enum Any There is also a void type, which is primarily used to identify the type of the method return value.Here are some simple examples to illustrate the basic usage of these types1 //

Decorators is a feature of TypeScript that is becoming more and more common in many major libraries. This lesson walks-through what decorators is and how to create your own.Nomarl to decorate a object:Const PERSON = {name: ' John '}; function Addage (age) { returnfunction(person) { return { , name:person.name } = addage (person); Console.log (John);//{name: "John", age:30} In

A recent project, the use of typescript to write JS script, the results are riddled with errors, repair also let me summarize the TS in how to use this. TS provides static types similar to C # and Java (strongly typed), declaring a function directly in global and namespace global and using the Functions keyword (which is the function keyword of JS), while in class you cannot use function to declare a method. Let's compare it to the C # difference

First come to know Babylonjs, because based on WEBGL to develop, so first introduce the basic knowledge.WebGL is an HTML standard that he wants to initialize on a canvas element.Preparing for the HTML pageSo let's start by looking at the HTML pageWe set up a canvas that is available for Babylon renderingAnd then because we use typescript, you can see that the script introduced is called App.js, but in my project only app.tsApp.ts will be compiled as a

A blog post in MSDN link : Tutorial series:learning How to write a 3D soft engine from scratch in C #, TypeScript or JAVASC RiptThis tutorial are part of the following series:1–writing the core logic for camera, mesh Device Object (this article)2–drawing lines and triangles to obtain a wireframe rendering3–loading meshes exported from Blender in a JSON format4–filling the triangle with rasterization and using a Z-buffer4b–bonus:using Tips parallelis

The jquery framework is all that is used in the project, but jquery is too big for webapp, and of course you can choose the version of jquery 2.* for the mobile side.Here I use a more mobile zepto framework, he is similar to jquery syntax, equivalent to a streamlined jquery!Do WebApp have to consider the user's network situation and user experience degree, so the traditional paging, in the WebApp is certainly not, here the general situation is made of rolling automatic update, for the picture, o

CopyrightArticle reprinted from: HTTPS://GITHUB.COM/ZHONGSPIt is recommended that you jump directly to the URL above to see the latest version.IntroducedIn addition to the traditional approach to object-oriented inheritance, one way to create classes from reusable components is to federate the code of another simple class. You may be familiar with Mixins and its features in languages like Scala, but it's also popular in JavaScript.Mixed sampleThe following code shows how to use mixed in

In addition to the customary idea of facing objects, another popular way to create classes from reusable components is to mix simple classes together. You may be familiar with this hybrid approach or have an understanding of the features of the Scala language, a pattern that is popular in the JavaScript community.Mixed caseIn the following code, we show how to mix the model in typescript, after reading the code, and then analyzing its execution.//Disp

eating" +Food ); the } - } -Let snake =NewSnake (); -Snake.eat (' mouse ');//Throw: "Snake" class does not have eat () method +Let dog =NewDog (); -Dog.eat (' Bones ');//log: This dog is eating bones . +Let cat =NewCat (); ACat.eat (' fish ');//log: The cat is eating fishDemo by TypeScript:1Abstract class animal{//Defining abstract Classes Animal2 constructor () {}3 abstract Eat (food:string) {}4 /*defines the abstract method eat (),

An error occurred running the ASP. NET Core program as follows:Chrome script debugging is enabled in Visual Studio To set breakpoints for Javascript/typescript in Visual Studio Automatic interrupt Error in script Opening the developer tool in Chrome causes the script debugging session to stop Learn more about Chrome debugging in Visual StudioLaunching application ...Workaround:Open the vs2017--tool--Options--debugging--general, and thenAn

If you have understood nodejs, you should be familiar with the following syntax: Math. js exports.add = function(n1, n2){return n1 + n2;} Server. js var math = require('./math.js');math.add(1,2); In this way, you can import JS files in JS files. However, in web development, we usually need to import all JS files in order on the HTML page. Similar methods are also provided in Typescript. Compoment. Ts export class Compoment { private element: El

is the default adornment get Set target is the constructor for a class for static members, and for instance members is the class's prototype object PropertyKey member name here is Method descript Property descriptor for an or member if the accessor adorner returns a value, it is used as the property descriptor for the method. */function Decorator (Target:any, PropertyKey:string, Descriptor:propertydescriptor) {}classD {Private_x:number; @DecoratorGetX () {return This. _x}; SetX (Value:number)

Inheritance is a-toIndicate a class receives behavior from a parent class. Then we can override, modify or augmentThose behaviors on the new class.1 Class Report {2Data:array;3 4Constructor (data:array) {5 This. data =data;6 }7 8 run () {9 This. Data.foreach (function(line) {Console.log (line);});Ten } One}Call the class:var New Report ([' first line ', ' Second Line ']);R.run ();Result: First Line Second LineNow let's say we want to has a second report that takes some headers

When creating a service, need to inject the sercive into the bootstrap ():Import {bootstrap, Component, View} from "Angular2/angular2""./todoinput"; "./todoservice" ; @Component ({ selector:' app '}) @View ({ directives: [Todoinput], Template: ' '}) class app{}Bootstrap (APP, [Todoservice]) ;Todoservice.jsExport class todoservice{ = []; Addtodo (value:any):void { this. Todos.push (value); }}Inputtodo.js:Import {Component, View} from "Angular2/angular2"; Imp

between the two:let list = [4, 5, 6];for (let i in list) { console.log(i); // "0", "1", "2",}for (let i of list) { console.log(i); // "4", "5", "6"One difference is that for..in you can manipulate any object; it provides a way to view the properties of an object. But for..in focus on the value of the Iteration object. Built-in Objects Map and Set properties have been implemented Symbol.iterator so that we can access the values they hold.let pets = new Set(["Cat", "Dog", "Hamster"]);pets["specie

The sort in typescript is similar to C #, but slightly different, but the official documents do not make sense.List =list.sort ((n1,n2) = { if(N1 > n2) { return 1; } If(N1 n2) { return -1; } return 0;});It is important to enumerate the valuesenum color{ Red, Green}// to Stringvar green:string = Color[color.green]; // to enum/numbervar color:color = Color[green];These two things are not content, but it has been troub

}). Share (); } public Makefilerequest (url:string, Postdata:any, files:file[]): Observable { returnOBSERVABLE.CREATE (Observer ={Let Formdata:formdata=NewFormData (), Xhr:xmlhttprequest=NewXMLHttpRequest (); //formData file stream append for(Let i = 0; i ) {formdata.append ("Uploads[]", Files[i], files[i].name); } //formData parameter Append if(PostData!== "" postdata!== undefined postdata!==NULL) { for(varPropertyinchpostdata) {