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This article mainly shows you the "ThinkJS2.1 support TypeScript sample analysis", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "ThinkJS2.1 support TypeScript sample analysis" this article.

One: support TypeScript

TypeScript is a free and open source programming language developed by Microsoft. It is a superset of JavaScript, adds optional static types to the language, and is very useful in large projects. ThinkJS 2.1began to support the creation of TypeScript-type projects, and will be automatically compiled and updated during development, eliminating the need for complex operations such as manual compilation. The details are as follows:

1. Create a TypeScript project

2. D.ts file

3. Existing projects have been upgraded to TypeScript projects.

Modify entry file

Modify package.json

Modify .thinkjsrc

Download think.d.ts description file

Modify file suffix

Add a description file to the project file

Second: performance improvement

Whether a framework is excellent or not depends on the functionality supported on the one hand and performance on the other. Although ThinkJS is more suitable for large-scale projects, its function and complexity are much higher than those of Express and Koa, but its performance is not much lower than that of Express and Koa. For specific test data, please see the figure below.

Note: the above data are tested using a distributed stress testing system.

As you can see from the test data in the above figure, although the performance of ThinkJS is lower than that of Express and Koa, the difference is not significant. Both ThinkJS and Sails.js are more suitable for large projects, but ThinkJS performs much better than Sails.js.

For specific test code, please see: https://github.com/thinkjs-team/thinkjs-performance-test, you can download the code to test locally. If you use the ab test tool, please note that the tool is very unstable under the Mac system, and the results of multiple tests will vary greatly.

Three: more featur

In addition to the two more prominent features mentioned above, ThinkJS 2.1 has more features as follows:

Controller supports the form of subdirectories

Support for PostgreSQL database

Model schema supports default values

The middleware in Hook returns null to prevent subsequent middleware execution.

Http and controller add the alias method render of display

Add serial execution method think.waterfall

Validate supports regularization

Fetch supports data transmission

Logic supports determining the type of request

Direct call to action is supported in scheduled tasks

Upgrade Babel to 6

International languages are no longer case-sensitive.

Change the content of the acquisition template file to asynchronous

The http object no longer inherits from the EventEmitter class

Excluding think.mode_mini mode, controller supports subdirectories

Database configuration name changed to database

Change the current fields to schema

Database configuration pwd changed to password

Optimize the generation of http objects so that you don't have to copy them every time

Filter files of hidden types such as .svn, .git, etc.

Move the file bin/index.js to src/command.js

Move the runtime directory to the project root directory and add the think.RUNTIME_PATH path constant

Adapter type adds the ability to convert to lowercase automatically and gives hints

Add thinkData to cache common data in the system

Combine think.locale and controller.locale methods

Fixed the problem that the inheritance file of nunjucks template could not be found

Fixed an issue with escaped / resulting in recognition errors in pathname

Fixed a problem where the data returned by the http.file method was modified and the source data was also modified.

Fix the problem that needs to be replaced by\\ in the path / under windows

Fixed error report caused by template file not in root directory under nunjucks

Fix the problem that sensitive data may be output on the page in production environment

Fixed the problem of no error message and poor location after failed parsing of JSON data in development mode

Fixed the problem that the view path was not updated when the module was created after view root_path modification

Fixed incorrect verification of required | int rules

Fixed problems with redis cache parsing configuration

Fixed a problem where REST API does not support logic

Fixed an error in the count method if the field name passed in was a keyword

The above is all the content of the article "sample Analysis of ThinkJS2.1 supporting TypeScript". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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