112 lines
6.6 KiB
JSON
112 lines
6.6 KiB
JSON
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"author": {
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"name": "Jonathan Ong",
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"url": "http://jongleberry.com"
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},
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"description": "Promisify a callback-based function",
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"homepage": "https://github.com/thenables/thenify#readme",
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"keywords": [
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"license": "MIT",
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"maintainers": [
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"name": "jongleberry",
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"email": "jonathanrichardong@gmail.com"
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"email": "dead_horse@qq.com"
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"name": "thenify",
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"readme": "\n# thenify\n\n[![NPM version][npm-image]][npm-url]\n[![Build status][travis-image]][travis-url]\n[![Test coverage][coveralls-image]][coveralls-url]\n[![Dependency Status][david-image]][david-url]\n[![License][license-image]][license-url]\n[![Downloads][downloads-image]][downloads-url]\n\nPromisify a callback-based function using [`any-promise`](https://github.com/kevinbeaty/any-promise).\n\n- Preserves function names\n- Uses a native promise implementation if available and tries to fall back to a promise implementation such as `bluebird`\n- Converts multiple arguments from the callback into an `Array`, also support change the behavior by `options.multiArgs`\n- Resulting function never deoptimizes\n- Supports both callback and promise style\n\nAn added benefit is that `throw`n errors in that async function will be caught by the promise!\n\n## API\n\n### fn = thenify(fn, options)\n\nPromisifies a function.\n\n### Options\n\n`options` are optional.\n\n- `options.withCallback` - support both callback and promise style, default to `false`.\n- `options.multiArgs` - change the behavior when callback have multiple arguments. default to `true`.\n - `true` - converts multiple arguments to an array\n - `false`- always use the first argument\n - `Array` - converts multiple arguments to an object with keys provided in `options.multiArgs`\n\n- Turn async functions into promises\n\n```js\nvar thenify = require('thenify');\n\nvar somethingAsync = thenify(function somethingAsync(a, b, c, callback) {\n callback(null, a, b, c);\n});\n```\n\n- Backward compatible with callback\n\n```js\nvar thenify = require('thenify');\n\nvar somethingAsync = thenify(function somethingAsync(a, b, c, callback) {\n callback(null, a, b, c);\n}, { withCallback: true });\n\n// somethingAsync(a, b, c).then(onFulfilled).catch(onRejected);\n// somethingAsync(a, b, c, function () {});\n```\n\nor use `thenify.withCallback()`\n\n```js\nvar thenify = require('thenify').withCallback;\n\nvar somethingAsync = thenify(function somethingAsync(a, b, c, callback) {\n callback(null, a, b, c);\n});\n\n// somethingAsync(a, b, c).then(onFulfilled).catch(onRejected);\n// somethingAsync(a, b, c, function () {});\n```\n\n- Always return the first argument in callback\n\n```js\nvar thenify = require('thenify');\n\nvar promise = thenify(function (callback) {\n callback(null, 1, 2, 3);\n}, { multiArgs: false });\n\n// promise().then(function onFulfilled(value) {\n// assert.equal(value, 1);\n// });\n```\n\n- Converts callback arguments to an object\n\n```js\nvar thenify = require('thenify');\n\nvar promise = thenify(function (callback) {\n callback(null, 1, 2, 3);\n}, { multiArgs: [ 'one', 'tow', 'three' ] });\n\n// promise().then(function onFulfilled(value) {\n// assert.deepEqual(value, {\n// one: 1,\n// tow: 2,\n// three: 3\n// });\n// });\n```\n\n[gitter-image]: https://badges.gitter.im/thenables/thenify.png\n[gitter-url]: https://gitter.im/thenables/thenify\n[npm-image]: https://img.shields.io/npm/v/thenify.svg?style=flat-square\n[npm-url]: https://npmjs.org/package/thenify\n[github-tag]: http://img.shields.io/github/tag/thenables/thenify.svg?style=flat-square\n[github-url]: https://github.com/thenables/thenify/tags\n[travis-image]: https://img.shields.io/travis/thenables/thenify.svg?style=flat-square\n[travis-url]: https://travis-ci.org/thenables/thenify\n[coveralls-image]: https://img.shields.io/coveralls/thenables/thenify.svg?style=flat-square\n[coveralls-url]: https://coveralls.io/r/thenables/thenify\n[david-image]: http://img.shields.io/david/thenables/thenify.svg?style=flat-square\n[david-url]: https://david-dm.org/thenables/thenify\n[license-image]: http://img.shields.io/npm/l/thenify.svg?style=flat-square\n[license-url]: LICENSE\n[downloads-image]: http://img.shields.io/npm/dm/thenify.svg?style=flat-square\n[downloads-url]: https://npmjs.org/package/thenify\n",
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"readmeFilename": "README.md",
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"repository": {
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"type": "git",
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"url": "git+https://github.com/thenables/thenify.git"
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},
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"scripts": {
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"test": "mocha --reporter spec",
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"test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot",
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"test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter dot"
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},
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"version": "3.3.0"
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}
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