pax_global_header00006660000000000000000000000064131762653210014520gustar00rootroot0000000000000052 comment=6024f52e5e64c1b0b755f86bf34605f5ab78b1b7 is-data-descriptor-1.0.0/000077500000000000000000000000001317626532100152145ustar00rootroot00000000000000is-data-descriptor-1.0.0/.editorconfig000066400000000000000000000004411317626532100176700ustar00rootroot00000000000000# http://editorconfig.org/ root = true [*] charset = utf-8 end_of_line = lf indent_size = 2 indent_style = space insert_final_newline = true trim_trailing_whitespace = true [{**/{actual,fixtures,expected,templates}/**,*.md}] trim_trailing_whitespace = false insert_final_newline = false is-data-descriptor-1.0.0/.eslintrc.json000066400000000000000000000067751317626532100200270ustar00rootroot00000000000000{ "env": { "browser": false, "es6": true, "node": true, "mocha": true }, "globals": { "document": false, "navigator": false, "window": false }, "rules": { "accessor-pairs": 2, "arrow-spacing": [2, { "before": true, "after": true }], "block-spacing": [2, "always"], "brace-style": [2, "1tbs", { "allowSingleLine": true }], "comma-dangle": [2, "never"], "comma-spacing": [2, { "before": false, "after": true }], "comma-style": [2, "last"], "constructor-super": 2, "curly": [2, "multi-line"], "dot-location": [2, "property"], "eol-last": 2, "eqeqeq": [2, "allow-null"], "generator-star-spacing": [2, { "before": true, "after": true }], "handle-callback-err": [2, "^(err|error)$" ], "indent": [2, 2, { "SwitchCase": 1 }], "key-spacing": [2, { "beforeColon": false, "afterColon": true }], "keyword-spacing": [2, { "before": true, "after": true }], "new-cap": [2, { "newIsCap": true, "capIsNew": false }], "new-parens": 2, "no-array-constructor": 2, "no-caller": 2, "no-class-assign": 2, "no-cond-assign": 2, "no-const-assign": 2, "no-control-regex": 2, "no-debugger": 2, "no-delete-var": 2, "no-dupe-args": 2, "no-dupe-class-members": 2, "no-dupe-keys": 2, "no-duplicate-case": 2, "no-empty-character-class": 2, "no-eval": 2, "no-ex-assign": 2, "no-extend-native": 2, "no-extra-bind": 2, "no-extra-boolean-cast": 2, "no-extra-parens": [2, "functions"], "no-fallthrough": 2, "no-floating-decimal": 2, "no-func-assign": 2, "no-implied-eval": 2, "no-inner-declarations": [2, "functions"], "no-invalid-regexp": 2, "no-irregular-whitespace": 2, "no-iterator": 2, "no-label-var": 2, "no-labels": 2, "no-lone-blocks": 2, "no-mixed-spaces-and-tabs": 2, "no-multi-spaces": 2, "no-multi-str": 2, "no-multiple-empty-lines": [2, { "max": 1 }], "no-native-reassign": 0, "no-negated-in-lhs": 2, "no-new": 2, "no-new-func": 2, "no-new-object": 2, "no-new-require": 2, "no-new-wrappers": 2, "no-obj-calls": 2, "no-octal": 2, "no-octal-escape": 2, "no-proto": 0, "no-redeclare": 2, "no-regex-spaces": 2, "no-return-assign": 2, "no-self-compare": 2, "no-sequences": 2, "no-shadow-restricted-names": 2, "no-spaced-func": 2, "no-sparse-arrays": 2, "no-this-before-super": 2, "no-throw-literal": 2, "no-trailing-spaces": 0, "no-undef": 2, "no-undef-init": 2, "no-unexpected-multiline": 2, "no-unneeded-ternary": [2, { "defaultAssignment": false }], "no-unreachable": 2, "no-unused-vars": [2, { "vars": "all", "args": "none" }], "no-useless-call": 0, "no-with": 2, "one-var": [0, { "initialized": "never" }], "operator-linebreak": [0, "after", { "overrides": { "?": "before", ":": "before" } }], "padded-blocks": [0, "never"], "quotes": [2, "single", "avoid-escape"], "radix": 2, "semi": [2, "always"], "semi-spacing": [2, { "before": false, "after": true }], "space-before-blocks": [2, "always"], "space-before-function-paren": [2, "never"], "space-in-parens": [2, "never"], "space-infix-ops": 2, "space-unary-ops": [2, { "words": true, "nonwords": false }], "spaced-comment": [0, "always", { "markers": ["global", "globals", "eslint", "eslint-disable", "*package", "!", ","] }], "use-isnan": 2, "valid-typeof": 2, "wrap-iife": [2, "any"], "yoda": [2, "never"] } } is-data-descriptor-1.0.0/.gitattributes000066400000000000000000000002001317626532100200770ustar00rootroot00000000000000# Enforce Unix newlines * text eol=lf # binaries *.ai binary *.psd binary *.jpg binary *.gif binary *.png binary *.jpeg binary is-data-descriptor-1.0.0/.gitignore000066400000000000000000000004461317626532100172100ustar00rootroot00000000000000# always ignore files *.DS_Store .idea *.sublime-* # test related, or directories generated by tests test/actual actual coverage .nyc* # npm node_modules npm-debug.log # yarn yarn.lock yarn-error.log # misc _gh_pages _draft _drafts bower_components vendor temp tmp TODO.md package-lock.jsonis-data-descriptor-1.0.0/.travis.yml000066400000000000000000000002141317626532100173220ustar00rootroot00000000000000sudo: false os: - linux - osx language: node_js node_js: - node - '9' - '8' - '7' - '6' - '5' - '4' - '0.12' - '0.10' is-data-descriptor-1.0.0/.verb.md000066400000000000000000000027271317626532100165620ustar00rootroot00000000000000## Usage ```js var isDataDesc = require('{%= name %}'); ``` ## Examples `true` when the descriptor has valid properties with valid values. ```js // `value` can be anything isDataDesc({value: 'foo'}) isDataDesc({value: function() {}}) isDataDesc({value: true}) //=> true ``` `false` when not an object ```js isDataDesc('a') //=> false isDataDesc(null) //=> false isDataDesc([]) //=> false ``` `false` when the object has invalid properties ```js isDataDesc({value: 'foo', bar: 'baz'}) //=> false isDataDesc({value: 'foo', bar: 'baz'}) //=> false isDataDesc({value: 'foo', get: function(){}}) //=> false isDataDesc({get: function(){}, value: 'foo'}) //=> false ``` `false` when a value is not the correct type ```js isDataDesc({value: 'foo', enumerable: 'foo'}) //=> false isDataDesc({value: 'foo', configurable: 'foo'}) //=> false isDataDesc({value: 'foo', writable: 'foo'}) //=> false ``` ## Valid properties The only valid data descriptor properties are the following: - `configurable` (required) - `enumerable` (required) - `value` (optional) - `writable` (optional) To be a valid data descriptor, either `value` or `writable` must be defined. **Invalid properties** A descriptor may have additional _invalid_ properties (an error will **not** be thrown). ```js var foo = {}; Object.defineProperty(foo, 'bar', { enumerable: true, whatever: 'blah', // invalid, but doesn't cause an error get: function() { return 'baz'; } }); console.log(foo.bar); //=> 'baz' ``` is-data-descriptor-1.0.0/LICENSE000066400000000000000000000021001317626532100162120ustar00rootroot00000000000000The MIT License (MIT) Copyright (c) 2015-2017, Jon Schlinkert. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. is-data-descriptor-1.0.0/README.md000066400000000000000000000123471317626532100165020ustar00rootroot00000000000000# is-data-descriptor [![NPM version](https://img.shields.io/npm/v/is-data-descriptor.svg?style=flat)](https://www.npmjs.com/package/is-data-descriptor) [![NPM monthly downloads](https://img.shields.io/npm/dm/is-data-descriptor.svg?style=flat)](https://npmjs.org/package/is-data-descriptor) [![NPM total downloads](https://img.shields.io/npm/dt/is-data-descriptor.svg?style=flat)](https://npmjs.org/package/is-data-descriptor) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/is-data-descriptor.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/is-data-descriptor) > Returns true if a value has the characteristics of a valid JavaScript data descriptor. Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support. ## Install Install with [npm](https://www.npmjs.com/): ```sh $ npm install --save is-data-descriptor ``` ## Usage ```js var isDataDesc = require('is-data-descriptor'); ``` ## Examples `true` when the descriptor has valid properties with valid values. ```js // `value` can be anything isDataDesc({value: 'foo'}) isDataDesc({value: function() {}}) isDataDesc({value: true}) //=> true ``` `false` when not an object ```js isDataDesc('a') //=> false isDataDesc(null) //=> false isDataDesc([]) //=> false ``` `false` when the object has invalid properties ```js isDataDesc({value: 'foo', bar: 'baz'}) //=> false isDataDesc({value: 'foo', bar: 'baz'}) //=> false isDataDesc({value: 'foo', get: function(){}}) //=> false isDataDesc({get: function(){}, value: 'foo'}) //=> false ``` `false` when a value is not the correct type ```js isDataDesc({value: 'foo', enumerable: 'foo'}) //=> false isDataDesc({value: 'foo', configurable: 'foo'}) //=> false isDataDesc({value: 'foo', writable: 'foo'}) //=> false ``` ## Valid properties The only valid data descriptor properties are the following: * `configurable` (required) * `enumerable` (required) * `value` (optional) * `writable` (optional) To be a valid data descriptor, either `value` or `writable` must be defined. **Invalid properties** A descriptor may have additional _invalid_ properties (an error will **not** be thrown). ```js var foo = {}; Object.defineProperty(foo, 'bar', { enumerable: true, whatever: 'blah', // invalid, but doesn't cause an error get: function() { return 'baz'; } }); console.log(foo.bar); //=> 'baz' ``` ## About
Contributing Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
Running Tests Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command: ```sh $ npm install && npm test ```
Building docs _(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_ To generate the readme, run the following command: ```sh $ npm install -g verbose/verb#dev verb-generate-readme && verb ```
### Related projects You might also be interested in these projects: * [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor "Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.") * [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor "Returns true if a value has the characteristics of a valid JavaScript data descriptor.") * [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor "Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.") * [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject "Returns true if the value is an object and not an array or null.") ### Contributors | **Commits** | **Contributor** | | --- | --- | | 21 | [jonschlinkert](https://github.com/jonschlinkert) | | 2 | [realityking](https://github.com/realityking) | ### Author **Jon Schlinkert** * [github/jonschlinkert](https://github.com/jonschlinkert) * [twitter/jonschlinkert](https://twitter.com/jonschlinkert) ### License Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert). Released under the [MIT License](LICENSE). *** _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._is-data-descriptor-1.0.0/index.js000066400000000000000000000016651317626532100166710ustar00rootroot00000000000000/*! * is-data-descriptor * * Copyright (c) 2015-2017, Jon Schlinkert. * Released under the MIT License. */ 'use strict'; var typeOf = require('kind-of'); module.exports = function isDataDescriptor(obj, prop) { // data descriptor properties var data = { configurable: 'boolean', enumerable: 'boolean', writable: 'boolean' }; if (typeOf(obj) !== 'object') { return false; } if (typeof prop === 'string') { var val = Object.getOwnPropertyDescriptor(obj, prop); return typeof val !== 'undefined'; } if (!('value' in obj) && !('writable' in obj)) { return false; } for (var key in obj) { if (key === 'value') continue; if (!data.hasOwnProperty(key)) { continue; } if (typeOf(obj[key]) === data[key]) { continue; } if (typeof obj[key] !== 'undefined') { return false; } } return true; }; is-data-descriptor-1.0.0/package.json000066400000000000000000000026341317626532100175070ustar00rootroot00000000000000{ "name": "is-data-descriptor", "description": "Returns true if a value has the characteristics of a valid JavaScript data descriptor.", "version": "1.0.0", "homepage": "https://github.com/jonschlinkert/is-data-descriptor", "author": "Jon Schlinkert (https://github.com/jonschlinkert)", "contributors": [ "Jon Schlinkert (http://twitter.com/jonschlinkert)", "Rouven Weßling (www.rouvenwessling.de)" ], "repository": "jonschlinkert/is-data-descriptor", "bugs": { "url": "https://github.com/jonschlinkert/is-data-descriptor/issues" }, "license": "MIT", "files": [ "index.js" ], "main": "index.js", "engines": { "node": ">=0.10.0" }, "scripts": { "test": "mocha" }, "dependencies": { "kind-of": "^6.0.0" }, "devDependencies": { "gulp-format-md": "^1.0.0", "mocha": "^3.5.3" }, "keywords": [ "accessor", "check", "data", "descriptor", "get", "getter", "is", "keys", "object", "properties", "property", "set", "setter", "type", "valid", "value" ], "verb": { "toc": false, "layout": "default", "tasks": [ "readme" ], "plugins": [ "gulp-format-md" ], "related": { "list": [ "is-accessor-descriptor", "is-data-descriptor", "is-descriptor", "isobject" ] }, "lint": { "reflinks": true } } } is-data-descriptor-1.0.0/test.js000066400000000000000000000034631317626532100165370ustar00rootroot00000000000000'use strict'; require('mocha'); var assert = require('assert'); var isDescriptor = require('./'); var noop = function() {}; describe('isDescriptor', function() { describe('value type', function() { it('should be false when not an object:', function() { assert(!isDescriptor('a')); assert(!isDescriptor(null)); assert(!isDescriptor([])); }); }); describe('data descriptor:', function() { it('should not be false when the object has invalid properties:', function() { assert(isDescriptor({value: 'foo', bar: 'baz'})); assert(isDescriptor({value: 'foo', bar: 'baz'})); assert(isDescriptor({value: 'foo', get: noop})); assert(isDescriptor({get: noop, value: noop})); }); it('should be true when the object has valid data-descriptor properties', function() { assert(isDescriptor({value: 'foo'})); assert(isDescriptor({value: noop})); }); it('should be false when valid properties are invalid types', function() { assert(!isDescriptor({value: 'foo', enumerable: 'foo'})); assert(!isDescriptor({value: 'foo', configurable: 'foo'})); assert(!isDescriptor({value: 'foo', writable: 'foo'})); }); it('should be true when a value is a valid data descriptor', function() { assert(isDescriptor({value: 'foo'})); assert(isDescriptor({writable: true})); assert(isDescriptor({value: 'foo', get: 'foo'})); }); it('should be false when the value is not a valid descriptor', function() { assert(!isDescriptor('foo')); assert(!isDescriptor({})); assert(!isDescriptor({configurable: true})); assert(!isDescriptor({enumerable: true})); assert(!isDescriptor({ get: undefined, set: undefined, enumerable: true, configurable: true })); }); }); });