How can I use typescript to improve the JavaScript programming effect?

What the hell is a typescript? What's the relationship with JavaScript?

Typescript is a quick-start open source programming language developed by Microsoft, a superset of JavaScript, and adds optional static types and class-based object-oriented programming to the language. can help web front-end developers make better JavaScript code, take care of a sizable JavaScript project, and prepare for ECMAScript 6.

JavaScript is a generic scripting language rooted in the core of the development tools and is also reflected in server-side implementations such as node. js. In addition, JavaScript is a key part of Microsoft's development technology solution, and if you want to extend office, you won't be using JavaScript.

JavaScript has grown very strong, but it's still a long way from perfection, especially when it comes to building Web applications that contain a lot of client-side code. This time, with the use of typescript, JavaScript defects can be solved perfectly. By simply writing code in typescript and then delivering it to the compiler, you can transform the code you develop into a JavaScript-style scheme that runs on the server side and can be invoked by HTML in the client.

Typescript also added a large number of ECMAScript 6 features to JavaScript, including classes and modules, and attempted to further integrate the two same-rooted languages to meet the standardized approach requirements of ECMAScript 6. In this way, you can use typescript to develop code that can be accepted for ECMAScript 6, while giving full play to Typescript's static type advantage to improve code security levels.

Typescript allows us to type-declare variables so that a is always an integer and C always belongs to a string. Although the type safety of typerscript is not as comprehensive as FORTRAN, it is still able to define numbers and strings, and can significantly improve the code debugging mechanism by using the Boolean type. In addition, Typerscript provides the option to implement type inference, thereby reducing the likelihood of errors occurring if everyone's code adds up to two numbers, then Typerscript will assume that the result is always a number.

By using typescript, developers can also apply a type to an array, or use enums to set a value for a specific variable name. If you are unsure of which type you might use, you can set the variable to any, in which case the typescript will not infer its specific type, and you will not encounter errors or warnings as a result. The typescript type can be chosen by itself, so there is no need to first add various types to existing code before compiling or running, which effectively simplifies the migration of existing code.

It is important to note that existing JavaScript code will be run as part of the typescript application. If you migrate your code to ECMAScript 6 or typescript syntax, you can enjoy the benefits of Typescript's various features. And if we use tools with typescript recognition capabilities, we can have support for visual Studio IntelliSense--which can help us manage the types in function calls. In addition, you can use the Typescript declaration file to quickly add type support to various common libraries and services, such as the jquery library.

Having such a typed, JavaScript-like language can be a significant simplification for class use and module building (very similar to the way Angularjs is handled). The presence of a type ensures that all instances in a warning class are called through a string, which will help us to easily build a more ideal constructor. You can treat this typed constructor call as a contract that defines the interaction between two pieces of code-and makes it easier for us to reuse the same function between different applications.

Defining a type in a function call is the key to creating an interface structure that makes our code more object-oriented. You can explicitly define the function element as an interface and choose to use a more descriptive name in the function without affecting the notification to the tools necessary for functions such as IntelliSense when the call is checked.

Defining types and interfaces in this way enables multiple developers to easily manage large JavaScript projects. In the function and class design, adhering to the "interface first" approach to the contract can help you to optimize the specific parts of the application without affecting the rest, or from other developers to borrow some kind of interface definition and directly apply to other implementation scenarios. This approach allows us to use tools such as Git and GitHub in a more efficient way to easily manage multiple code branches in a set of continuous development models.

If you are using the Java language or the C # language, you must not be unfamiliar with the class implementation mechanisms of typescript (and ECMAScript 6). You can create a class within a constructor to define the type used in the method, and eventually use a similar to handle various internal objects. You can also extend a class by using inheritance, adding functionality, and overriding methods. More notably, Typescript also supports generics common in functions and interfaces--which can help you deliver reusable functions.

Once you have mastered the way typescript processes classes and functions, you can begin to organize them into modules, where classes and functions can be split into multiple files. This is obviously a very handy way to organize your code-for example, we can use several files to handle different functions in a shopping cart. After that, you can update each sub-module separately to improve its performance level by using the adjustment zeroing mechanism in a particular function without affecting other functions. A JavaScript library with declarative files can also be used as a module, so you can take advantage of the many advantages that are provided in the typescript application.

In the development of large Web applications, the use of JavaScript, with Typescript as a starting point, will greatly improve the efficiency of our development. Typescript not only helps us to complete the coding process with full control and follow a reusable approach, but also has the ideal path to ECMAScript 6. I believe that the future development of Web front-end, and even the entire Web site, will be gradually used to typescript to improve the programming effect of JavaScript.

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How can I use typescript to improve the JavaScript programming effect?