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@putout/operator-declare

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@putout/operator-declare

🐊Putout operator adds ability to declare referenced variables that was not defined

  • 10.0.1
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@putout/operator-declare NPM version

🐊Putout operator adds ability to declare variables that has references with no definitions. Most likely you prefer using Declarator plugin type based on current Operator.

Install

npm i putout @putout/operator-declare

API

If you want to create 🐊Putout plugin that will declare variables according to your needs just:

const {operator} = require('putout');
const {declare} = operator;

module.exports = declare({
    fs: `import fs from 'fs/promises'`,
});

Dual packages

When you need different declarations for ESM and CommonJS you can use:

const {operator} = require('putout');
const {declare} = operator;

module.exports = declare({
    fs: {
        esm: `import fs from 'fs/promises'`,
        comomnjs: `const fs = require('fs')`, // drop when not needed
    },
});

Configuration

Plugin supports options, so you can pass it in .putout.json:

{
    "rules": {
        "putout/declare": ["on", {
            "declarations": {
                "fs": "import fs from 'fs/promises'"
            }
        }]
    }
}

If for some reason you don't need some kind of declaration, add dismiss field and it will be ignored:

{
    "rules": {
        "putout/declare": ["on", {
            "declarations": {
                "fs": "import fs from 'fs/promises'"
            },
            "dismiss": ["fs"]
        }]
    }
}

If you want to override type to avoid detecting, set it to esm|commonjs:

{
    "rules": {
        "putout/declare": ["on", {
            "declarations": {
                "fs": "import fs from 'fs/promises'"
            },
            "dismiss": ["fs"],
            "type": "esm"
        }]
    }
}

Used in

Evaluate

Can be used with ESLint's putout/evaluate:

{
    "rules": {
        "putout/declare": ["on", {
            "declarations": {
                "superMethod": "import superMethod from '__putout_evaluate: join(`./`, basename(__filename), `.js`)'"
            }
        }]
    }
}

If you have a file index.spec.js:

+ import superMethod from './index.js'
superMethod();

License

MIT

Keywords

FAQs

Package last updated on 26 Oct 2024

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