Programming VIP

This scheme provides a plug-in front-end project internationalization implementation scheme, which can support internationalization without supporting internationalization at the beginning for some reasons, and then support internationalization without modifying the original business code. Make use of construction tools to achieve the internati ...

Q: Is JS code executed sequentially? A: During the execution of JS code, it is necessary to promote variables first, and the reason why variable promotion is needed is that JS code needs to be compiled before execution 1. Variable promotion Variable and function declarations will be stored in the variable environment, and the default v ...

Recently, there has been a rush of trust in the front-end circle. All front-end tools that can be rewritten with trust are rewritten with trust. The tool introduced today is bable: swc, a tool that converts ES6 into ES5.Moreover, on the official website of swc, it is very straightforward to say that they are benchmarking with babel. swc and bab ...

Polyfills npm install --save @babel/polyfill Then, import it into our main bundle file: import '@babel/polyfill' console.log(Array.from([1, 2, 3], x => x + x)) Note that this approach gives priority to correctness rather than bundle size. In order to be safe and reliable, polyfill/shim must run before all other codes and need to be loa ...