如何在箭头函数之前/之后创建空格，eslint

Question

I want to autoformat this kind of arrow functions, make spaces before/after equal sign and "=>", also spaces between functions

const test=()=>{

}

I haven't worked with eslint before, could you please help me

Answer 1

The only way to get eslint to fix issues is by using the --fix option on the command-line, though you may be able to configure your IDE to ensure this happens when you save a file, for example.

To generate warnings for these problems:

Here's the documentation for this rule .

There are several ways to go about this.

1) If you want to fix this issue for the whole of one file add the following to the very top of the file:

/* eslint arrow-spacing: ["error", { "before": true, "after": true }] */

2) If you want to disable it for just that line

/* eslint arrow-spacing: ["error", { "before": true, "after": true }] */
const test=()=>{
}

3) If you want all files to be affected you need an eslint configuration file to which you can add rules. You may already have one of those. It will be in you root folder and will be called .eslintrc . If you don't have one here's the information on how to set one up . Then all you need to do is add the rule depending on your requirements:

"rules": {
 // ...
 "arrow-spacing": ["error", { "before": true, "after": true }]
}