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15 changes: 15 additions & 0 deletions package-lock.json

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39 changes: 39 additions & 0 deletions recipes/util-is/README.md
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# `util.is*()`

This codemod replaces the following deprecated `util.is*()` methods with their modern equivalents:

- [DEP0044: `util.isArray()`](https://nodejs.org/docs/latest/api/deprecations.html#DEP0044)
- [DEP0045: `util.isBoolean()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0045-utilisboolean)
- [DEP0046: `util.isBuffer()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0046-utilisbuffer)
- [DEP0047: `util.isDate()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0047-utilisdate)
- [DEP0048: `util.isError()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0048-utiliserror)
- [DEP0049: `util.isFunction()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0049-utilisfunction)
- [DEP0050: `util.isNull()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0050-utilisnull)
- [DEP0051: `util.isNullOrUndefined()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0051-utilisnullorundefined)
- [DEP0052: `util.isNumber()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0052-utilisnumber)
- [DEP0053: `util.isObject()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0053-utilisobject)
- [DEP0054: `util.isPrimitive()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0054-utilisprimitive)
- [DEP0055: `util.isRegExp()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0055-utilisregexp)
- [DEP0056: `util.isString()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0056-utilisstring)
- [DEP0057: `util.isSymbol()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0057-utilissymbol)
- [DEP0058: `util.isUndefined()`](https://nodejs.org/docs/latest/api/deprecations.html#dep0058-utilisundefined)

## Examples

| **Before** | **After** |
|-----------------------------------|---------------------------------------------|
| `util.isArray(value)` | `Array.isArray(value)` |
| `util.isBoolean(value)` | `typeof value === 'boolean'` |
| `util.isBuffer(value)` | `Buffer.isBuffer(value)` |
| `util.isDate(value)` | `value instanceof Date` |
| `util.isError(value)` | `Error.isError(value)` |
| `util.isFunction(value)` | `typeof value === 'function'` |
| `util.isNull(value)` | `value === null` |
| `util.isNullOrUndefined(value)` | `value === null || value === undefined` |
| `util.isNumber(value)` | `typeof value === 'number'` |
| `util.isObject(value)` | `value && typeof value === 'object'` |
| `util.isPrimitive(value)` | `Object(value) !== value` |
| `util.isRegExp(value)` | `value instanceof RegExp` |
| `util.isString(value)` | `typeof value === 'string'` |
| `util.isSymbol(value)` | `typeof value === 'symbol'` |
| `util.isUndefined(value)` | `typeof value === 'undefined'` |
21 changes: 21 additions & 0 deletions recipes/util-is/codemod.yml
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schema_version: "1.0"
name: "@nodejs/util-is"
version: 1.0.0
description: "Replaces deprecated `util.is*()` methods with their modern equivalents."
author: Augustin Mauroy
license: MIT
workflow: workflow.yaml
category: migration

targets:
languages:
- javascript
- typescript

keywords:
- transformation
- migration

registry:
access: public
visibility: public
24 changes: 24 additions & 0 deletions recipes/util-is/package.json
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{
"name": "@nodejs/util-is",
"version": "1.0.0",
"description": "Replaces deprecated `util.is*()` methods with their modern equivalents.",
"type": "module",
"scripts": {
"test": "npx codemod@next jssg test -l typescript ./src/workflow.ts ./"
},
"repository": {
"type": "git",
"url": "git+https://github.com/nodejs/userland-migrations.git",
"directory": "recipes/util-is",
"bugs": "https://github.com/nodejs/userland-migrations/issues"
},
"author": "Augustin Mauroy",
"license": "MIT",
"homepage": "https://github.com/nodejs/userland-migrations/blob/main/recipes/util-is/README.md",
"devDependencies": {
"@codemod.com/jssg-types": "^1.0.3"
},
"dependencies": {
"@nodejs/codemod-utils": "0.0.0"
}
}
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