Universal linter with fasttime presets.

Usage no npm install needed!

<script type="module">
  import fasttimeLint from 'https://cdn.skypack.dev/@fasttime/lint';


@fasttime/lint ยท npm version

Universal linter with fasttime presets.


Plain usage:

exports.lint =
async () =>
    const { lint } = require('@fasttime/lint');

    await lint({ src, env, fix, globals, parserOptions, rules });

Usage with Gulp:

exports.lint =
() =>
    const { gulpLint } = require('@fasttime/lint');

    const stream = gulpLint({ src, env, fix, globals, parserOptions, rules });
    return stream;

It is also possible to specify a list of configurations, each targeting a different set of files.

await lint({ src: src1, ...config1 }, { src: src2, ...config2 });


const stream = gulpLint({ src: src1, ...config1 }, { src: src2, ...config2 });



The setting src is used to specify the files to be linted. JavaScript, TypeScript and Gehrkin files are supported. The file type is inferred from the extension according to the following mapping.

Extension Type
.cjs JavaScript
.feature Gherkin
.js JavaScript
.mjs JavaScript
.ts TypeScript

It is fine to specify different types of source files in the same src glob pattern(s), as long as other configuration settings don't interfere.


When set to true, linting problems are fixed automatically if possible.

JavaScript and TypeScript options

JavaScript and TypeScript are linted with ESLint. The following ESLint options are supported.

Additionally, the legacy option envs can be used instead of env to specify environments as a string or array of strings rather than with an object.

Gherkin options

Currently, the only specific option for Gherkin files is defaultDialectName, which can be a string specifing the keyword of a supported language. The default is English.