@livechat/eslint-plugin
v1.2.1
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Linting rules plugin for TypeScript ESLint
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Liniting rules plugin for TypeScript ESLint by LiveChat
A package of linting rules used in TypeScript ESLint.
Quick-start
Installation
$ npm i --save-dev @livechat/eslint-plugin
Usage example
{
"plugins": ["@livechat"],
"rules": {
"@livechat/no-declare": "error"
}
}
Linting rules list
| Name | Description |
| -------------------------------------------------------------- | --------------------------------------------- |
| @livechat/no-declare
| Forbids using 'declare' keyword |
no-declare
Using 'declare' keyword may be forbidden for all or selected identifiers. You can use it for example to force another methods of declaring global variables, e.g. using 'import' forms.
Options
type Options = {
onlyIdentifiers?: string[];
excludeIdentifiers?: string[];
};
const defaultOptions: Options = {
onlyIdentifiers: [];
excludeIdentifiers: [];
};
The rule accepts options with the following properties:
onlyIdentifiers
(optional) - If used, only the provided identifiers will be reported. All other identifiers declared withdeclare
keyword will be ignored.excludeIdentifiers
(optional) - If used, all identifiers will be reported except those provided in the array. IfonlyIdentifiers
is used, this option is ignored.
default options
Don't use 'declare' keyword.
❌ Incorrect
declare const someConst: any;
declare const window: { location };
declare const x, y, z: number;
✅ Correct
import someConst from 'some-lib';
import { window } from 'utils/global-declarations';
const { x, y, z } = window;
onlyIdentifiers
Don't use 'declare' keyword for the provided identifiers.
{
"@livechat/no-declare": [ "error", { "onlyIdentifiers": [ "window" ] } ]
}
❌ Incorrect
declare const window: any;
declare const window: { location };
✅ Correct
import { window } from 'utils/global-declarations';
declare const someConst: any;
declare const x, y, z: number;
excludeIdentifiers
Don't use 'declare' keyword except for the provided identifiers. If onlyIdentifiers
is used, this option is ignored.
{
"@livechat/no-declare": [ "error", { "excludeIdentifiers": [ "someConst" ] } ]
}
❌ Incorrect
declare const window: any;
declare const x, y, z: number;
✅ Correct
import { window } from 'utils/global-declarations';
declare const someConst: any;