ESLint
ESLint
环境配置
TypeScript 中使用ESLint
首先来安装依赖:
$ yarn add --dev eslint
$ yarn add --dev @typescript-eslint/eslint-plugin
$ yarn add --dev @typescript-eslint/parser
然后来对
module.exports = {
parser: "@typescript-eslint/parser",
plugins: ["@typescript-eslint"],
extends: ["plugin:@typescript-eslint/recommended"],
};
最后,我们还需要在
"eslint.validate": [
"javascript",
"javascriptreact",
"typescript",
"typescriptreact"
]
技巧
在大型项目中,TIMING
变量来查看单个规则的耗时:
$ TIMING=1 eslint lib
Rule | Time (ms) | Relative
:----------------------------|----------:|--------:
valid-jsdoc | 203.798 | 6.7%
camelcase | 142.146 | 4.6%
no-unmodified-loop-condition | 136.811 | 4.5%
indent | 127.138 | 4.2%
no-undefined | 124.525 | 4.1%
keyword-spacing | 85.397 | 2.8%
space-in-parens | 76.179 | 2.5%
no-this-before-super | 72.317 | 2.4%
no-implied-eval | 69.945 | 2.3%
space-infix-ops | 57.128 | 1.9%