pax_global_header00006660000000000000000000000064131713142270014513gustar00rootroot0000000000000052 comment=0c6b15a88bc10cd47f67a09506399dfc9ddc075d is-number-4.0.0/000077500000000000000000000000001317131422700134155ustar00rootroot00000000000000is-number-4.0.0/.editorconfig000066400000000000000000000004411317131422700160710ustar00rootroot00000000000000# 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-number-4.0.0/.eslintrc.json000066400000000000000000000067751317131422700162300ustar00rootroot00000000000000{ "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-number-4.0.0/.gitattributes000066400000000000000000000001771317131422700163150ustar00rootroot00000000000000# Enforce Unix newlines * text eol=lf # binaries *.ai binary *.psd binary *.jpg binary *.gif binary *.png binary *.jpeg binaryis-number-4.0.0/.gitignore000066400000000000000000000004461317131422700154110ustar00rootroot00000000000000# 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-number-4.0.0/.travis.yml000066400000000000000000000002041317131422700155220ustar00rootroot00000000000000sudo: false os: - linux - osx language: node_js node_js: - node - '8' - '7' - '6' - '5' - '4' - '0.12' - '0.10' is-number-4.0.0/.verb.md000066400000000000000000000031611317131422700147540ustar00rootroot00000000000000## Usage To understand some of the rationale behind the decisions made in this library (and to learn about some oddities of number evaluation in JavaScript), [see this gist][gist]. ```js var isNumber = require('{%= name %}'); ``` ### true See the [tests](./test.js) for more examples. ```js isNumber(5e3) //=> 'true' isNumber(0xff) //=> 'true' isNumber(-1.1) //=> 'true' isNumber(0) //=> 'true' isNumber(1) //=> 'true' isNumber(1.1) //=> 'true' isNumber(10) //=> 'true' isNumber(10.10) //=> 'true' isNumber(100) //=> 'true' isNumber('-1.1') //=> 'true' isNumber('0') //=> 'true' isNumber('012') //=> 'true' isNumber('0xff') //=> 'true' isNumber('1') //=> 'true' isNumber('1.1') //=> 'true' isNumber('10') //=> 'true' isNumber('10.10') //=> 'true' isNumber('100') //=> 'true' isNumber('5e3') //=> 'true' isNumber(parseInt('012')) //=> 'true' isNumber(parseFloat('012')) //=> 'true' ``` ### False See the [tests](./test.js) for more examples. ```js isNumber('foo') //=> 'false' isNumber([1]) //=> 'false' isNumber([]) //=> 'false' isNumber(function () {}) //=> 'false' isNumber(Infinity) //=> 'false' isNumber(NaN) //=> 'false' isNumber(new Array('abc')) //=> 'false' isNumber(new Array(2)) //=> 'false' isNumber(new Buffer('abc')) //=> 'false' isNumber(null) //=> 'false' isNumber(undefined) //=> 'false' isNumber({abc: 'abc'}) //=> 'false' ``` [infinity]: http://en.wikipedia.org/wiki/Infinity [gist]: https://gist.github.com/jonschlinkert/e30c70c713da325d0e81 is-number-4.0.0/LICENSE000066400000000000000000000021001317131422700144130ustar00rootroot00000000000000The MIT License (MIT) Copyright (c) 2014-2017, 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-number-4.0.0/README.md000066400000000000000000000120161317131422700146740ustar00rootroot00000000000000# is-number [![NPM version](https://img.shields.io/npm/v/is-number.svg?style=flat)](https://www.npmjs.com/package/is-number) [![NPM monthly downloads](https://img.shields.io/npm/dm/is-number.svg?style=flat)](https://npmjs.org/package/is-number) [![NPM total downloads](https://img.shields.io/npm/dt/is-number.svg?style=flat)](https://npmjs.org/package/is-number) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/is-number.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/is-number) > Returns true if the value is a number. comprehensive tests. 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-number ``` ## Usage To understand some of the rationale behind the decisions made in this library (and to learn about some oddities of number evaluation in JavaScript), [see this gist](https://gist.github.com/jonschlinkert/e30c70c713da325d0e81). ```js var isNumber = require('is-number'); ``` ### true See the [tests](./test.js) for more examples. ```js isNumber(5e3) //=> 'true' isNumber(0xff) //=> 'true' isNumber(-1.1) //=> 'true' isNumber(0) //=> 'true' isNumber(1) //=> 'true' isNumber(1.1) //=> 'true' isNumber(10) //=> 'true' isNumber(10.10) //=> 'true' isNumber(100) //=> 'true' isNumber('-1.1') //=> 'true' isNumber('0') //=> 'true' isNumber('012') //=> 'true' isNumber('0xff') //=> 'true' isNumber('1') //=> 'true' isNumber('1.1') //=> 'true' isNumber('10') //=> 'true' isNumber('10.10') //=> 'true' isNumber('100') //=> 'true' isNumber('5e3') //=> 'true' isNumber(parseInt('012')) //=> 'true' isNumber(parseFloat('012')) //=> 'true' ``` ### False See the [tests](./test.js) for more examples. ```js isNumber('foo') //=> 'false' isNumber([1]) //=> 'false' isNumber([]) //=> 'false' isNumber(function () {}) //=> 'false' isNumber(Infinity) //=> 'false' isNumber(NaN) //=> 'false' isNumber(new Array('abc')) //=> 'false' isNumber(new Array(2)) //=> 'false' isNumber(new Buffer('abc')) //=> 'false' isNumber(null) //=> 'false' isNumber(undefined) //=> 'false' isNumber({abc: 'abc'}) //=> 'false' ``` ## 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: * [even](https://www.npmjs.com/package/even): Get the even numbered items from an array. | [homepage](https://github.com/jonschlinkert/even "Get the even numbered items from an array.") * [is-even](https://www.npmjs.com/package/is-even): Return true if the given number is even. | [homepage](https://github.com/jonschlinkert/is-even "Return true if the given number is even.") * [is-odd](https://www.npmjs.com/package/is-odd): Returns true if the given number is odd. | [homepage](https://github.com/jonschlinkert/is-odd "Returns true if the given number is odd.") * [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive. | [homepage](https://github.com/jonschlinkert/is-primitive "Returns `true` if the value is a primitive. ") * [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of "Get the native type of a value.") * [odd](https://www.npmjs.com/package/odd): Get the odd numbered items from an array. | [homepage](https://github.com/jonschlinkert/odd "Get the odd numbered items from an array.") ### Contributors | **Commits** | **Contributor** | | --- | --- | | 38 | [jonschlinkert](https://github.com/jonschlinkert) | | 5 | [charlike](https://github.com/charlike) | ### 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 October 17, 2017._is-number-4.0.0/benchmark/000077500000000000000000000000001317131422700153475ustar00rootroot00000000000000is-number-4.0.0/benchmark/check.js000066400000000000000000000010711317131422700167610ustar00rootroot00000000000000'use strict'; var fs = require('fs'); var chalk = require('chalk'); var path = require('path'); fs.readdirSync(__dirname + '/code').forEach(function (fp) { if (/\.js$/.test(fp)) { var fn = require(path.resolve(__dirname, 'code', fp)); var name = path.basename(fp, path.extname(fp)); fs.readdirSync(__dirname + '/fixtures').forEach(function (fixture) { fixture = path.resolve(__dirname, 'fixtures', fixture); if (/\.js$/.test(fixture)) { console.log(chalk.bold(name) + ':', fn.apply(null, require(fixture))); } }); } }); is-number-4.0.0/benchmark/code/000077500000000000000000000000001317131422700162615ustar00rootroot00000000000000is-number-4.0.0/benchmark/code/current.js000066400000000000000000000003041317131422700202760ustar00rootroot00000000000000'use strict'; var isNumber = require('../..'); module.exports = function(arr) { var len = arr.length; var res = []; while (len--) { res.push(isNumber(arr[len])); } return res; }; is-number-4.0.0/benchmark/code/isFinite.js000066400000000000000000000004121317131422700203660ustar00rootroot00000000000000'use strict'; module.exports = function(arr) { var len = arr.length; var res = []; while (len--) { res.push(isNumber(arr[len])); } return res; }; function isNumber(n) { return (!!(+n) && !Array.isArray(n)) && isFinite(n) || n === '0'|| n === 0; } is-number-4.0.0/benchmark/code/parseFloat.js000066400000000000000000000003701317131422700207170ustar00rootroot00000000000000'use strict'; module.exports = function(arr) { var len = arr.length; var res = []; while (len--) { res.push(isNumber(arr[len])); } return res; }; function isNumber(n) { return !Array.isArray(n) && (n - parseFloat(n) + 1) >= 0; } is-number-4.0.0/benchmark/fixtures/000077500000000000000000000000001317131422700172205ustar00rootroot00000000000000is-number-4.0.0/benchmark/fixtures/all.js000066400000000000000000000037171317131422700203360ustar00rootroot00000000000000module.exports = [[ 0xff, 5e3, 0, 0.1, -0.1, -1.1, 37, 3.14, 1, 1.1, 10, 10.10, 100, -100, '0.1', '-0.1', '-1.1', '0', '012', '0xff', '1', '1.1', '10', '10.10', '100', '5e3', ' 56\r\n ', // issue#3 Math.LN2, Number(1), new Number(1), // 012, Octal literal not allowed in strict mode parseInt('012'), parseFloat('012'), Math.abs(1), Math.acos(1), Math.asin(1), Math.atan(1), Math.atan2(1, 2), Math.ceil(1), Math.cos(1), Math.E, Math.exp(1), Math.floor(1), Math.LN10, Math.LN2, Math.log(1), Math.LOG10E, Math.LOG2E, Math.max(1, 2), Math.min(1, 2), Math.PI, Math.pow(1, 2), Math.pow(5, 5), Math.random(1), Math.round(1), Math.sin(1), Math.sqrt(1), Math.SQRT1_2, Math.SQRT2, Math.tan(1), Number.MAX_VALUE, Number.MIN_VALUE, '0.0', '0x0', '0e+5', '000', '0.0e-5', '0.0E5', +'', +1, +3.14, +37, +5, +[], +Boolean(true), +false, +Math.LN2, +String(100), +true, +null, +Number(1), +new Array(''), +new Array(0), +new Boolean(true), +new Buffer(''), +new Date, +new Date(), +new Number(1), // should fail ' ', // issue#3 '\r\n\t', // issue#3 '', '3a', 'abc', 'false', 'null', 'true', 'undefined', +'abc', +/foo/, +[1, 2, 4], +function () {}, +function() {}, +function(){}, +Infinity, +Math.sin, +NaN, +new Array('abc'), +new Array(2), +new RegExp('foo'), +new String("abc"), +String('foo'), +undefined, +{a:1}, +{}, // Symbol('foo'), // Symbol(), // Symbol.iterator, /foo/, [1, 2, 3], [1], [], Boolean(true), false, function () {}, function() {}, function(){}, Infinity, Math.sin, NaN, new Array(''), new Array('abc'), new Array(0), new Boolean(true), new Buffer(''), new Buffer('abc'), new Date(), new RegExp('foo'), new String("abc"), null, String("abc"), true, undefined, {a:1}, {abc: 'abc'}, {}, ]] is-number-4.0.0/benchmark/fixtures/infinity.js000066400000000000000000000000371317131422700214070ustar00rootroot00000000000000module.exports = [[Infinity]]; is-number-4.0.0/benchmark/fixtures/null.js000066400000000000000000000000331317131422700205240ustar00rootroot00000000000000module.exports = [[null]]; is-number-4.0.0/benchmark/fixtures/number.js000066400000000000000000000000301317131422700210370ustar00rootroot00000000000000module.exports = [[1]]; is-number-4.0.0/benchmark/fixtures/string-number.js000066400000000000000000000000321317131422700223450ustar00rootroot00000000000000module.exports = [['1']]; is-number-4.0.0/benchmark/fixtures/string.js000066400000000000000000000000341317131422700210610ustar00rootroot00000000000000module.exports = [['foo']]; is-number-4.0.0/benchmark/index.js000066400000000000000000000002621317131422700170140ustar00rootroot00000000000000'use strict'; var Suite = require('benchmarked'); var suite = new Suite({ result: false, fixtures: 'fixtures/*.js', code: 'code/*.js', cwd: __dirname, }); suite.run(); is-number-4.0.0/benchmark/last.txt000066400000000000000000000002471317131422700170560ustar00rootroot00000000000000current.js x 100,502 ops/sec ±0.80% (94 runs sampled) isFinite.js x 91,315 ops/sec ±0.92% (89 runs sampled) parseFloat.js x 72,464 ops/sec ±1.17% (91 runs sampled) is-number-4.0.0/benchmark/support.js000066400000000000000000000150121317131422700174200ustar00rootroot00000000000000console.log('+new Array() //=> ', +new Array()); console.log('+new Array(0) //=> ', +new Array(0)); console.log('new Array(0) //=> ', new Array(0)); console.log('new Array(0)+1 //=> ', new Array(0)+1); console.log('+new Array(1) //=> ', +new Array(1)); console.log('new Array(1)+1 //=> ', new Array(1)+1); console.log('+new Array(1)+1 //=> ', +new Array(1)+1); console.log('+new Array(2) //=> ', +new Array(2)); console.log('+new Array(2)+1 //=> ', +new Array(2)+1); console.log('+new Array(100)+1 //=> ', +new Array(100)+1); console.log('typeof (+new Array(100)+1) === "number" //=> ', typeof (+new Array(100)+1) === 'number'); console.log('isFinite(+new Array()) //=> ', isFinite(+new Array())) console.log('isFinite(+new Array(0)) //=> ', isFinite(+new Array(0))) console.log('isFinite(new Array(0)) //=> ', isFinite(new Array(0))) console.log('isFinite(new Array(0)+1) //=> ', isFinite(new Array(0)+1)) console.log('isFinite(+new Array(1)) //=> ', isFinite(+new Array(1))) console.log('isFinite(new Array(1)+1) //=> ', isFinite(new Array(1)+1)) console.log('isFinite(+new Array(1)+1) //=> ', isFinite(+new Array(1)+1)) console.log('isFinite(+new Array(2)) //=> ', isFinite(+new Array(2))) console.log('isFinite(+new Array(2)+1) //=> ', isFinite(+new Array(2)+1)) console.log('isFinite(+new Array(100)+1) //=> ', isFinite(+new Array(100)+1)) console.log('isFinite(typeof (+new Array(100)+1) === "number") //=> ', isFinite(typeof (+new Array(100)+1) === 'number')) // Numbers typeof 37 === 'number'; typeof 3.14 === 'number'; typeof Math.LN2 === 'number'; typeof Infinity === 'number'; typeof NaN === 'number'; // Despite being "Not-A-Number" typeof Number(1) === 'number'; // but never use this form! // Strings typeof "" === 'string'; typeof "bla" === 'string'; typeof (typeof 1) === 'string'; // typeof always return a string typeof String("abc") === 'string'; // but never use this form! // Booleans typeof true === 'boolean'; typeof false === 'boolean'; typeof Boolean(true) === 'boolean'; // but never use this form! // Symbols typeof Symbol() === 'symbol' typeof Symbol('foo') === 'symbol' typeof Symbol.iterator === 'symbol' // Undefined typeof undefined === 'undefined'; typeof blabla === 'undefined'; // an undefined variable // Objects typeof {a:1} === 'object'; // use Array.isArray or Object.prototype.toString.call // to differentiate regular objects from arrays typeof [1, 2, 4] === 'object'; typeof new Date() === 'object'; // The following is confusing. Don't use! typeof new Boolean(true) === 'object'; typeof new Number(1) === 'object'; typeof new String("abc") === 'object'; // Functions typeof function(){} === 'function'; typeof Math.sin === 'function'; // ======================= // Numbers console.log(typeof +37) console.log(typeof +3.14) console.log(typeof +Math.LN2) console.log(typeof +Infinity) console.log(typeof +NaN) console.log(typeof +Number(1)) // Strings console.log(typeof +'') console.log(typeof +'foo') console.log(typeof +(typeof 1)) console.log(typeof +(typeof 'foo')) console.log(typeof +String('foo')) console.log(typeof +String(100)) // Booleans console.log(typeof +true) console.log(typeof +false) console.log(typeof +Boolean(true)) // Undefined console.log(typeof +undefined) // console.log(typeof +blabla) // Objects console.log(typeof +{a:1}) // use Array.isArray or Object.prototype.toString.call // to differentiate regular objects from arrays console.log(typeof +[1, 2, 4]) console.log(typeof +new Date()) // The following is confusing. Don't use! console.log(typeof +new Boolean(true)) console.log(typeof +new Number(1)) console.log(typeof +new String("abc")) // Functions console.log(typeof +function(){}) console.log(typeof +Math.sin) console.log(typeof +'foo') console.log(-new Date) console.log(-new Date()) console.log(1 + null) console.log(1 + +null) console.log(1 + null + '2') console.log(1 + null + 2) console.log(+null + +null) console.log(1 + +false) console.log(1 + false) console.log(1 + true) console.log(1 + +true) console.log(false + false) console.log(+false + false) console.log(+false + +false) console.log(false + null) console.log(+false + null) console.log(+false + +null) console.log(true + true) console.log(+true + true) console.log(+true + +true) console.log(true + false) console.log(+true + false) console.log(+true + +false) console.log(+true + +null) console.log(1 + 2) // 3 console.log(true + 1) console.log(false + false) console.log(5 + 'abc') console.log('abc' + false) console.log('abc' + 'bar') console.log(+1 + 2) // 3 console.log(+true + 1) console.log(+false + false) console.log(+5 + 'abc') console.log(+'abc' + false) console.log(+'abc' + 'bar') console.log(typeof (+1 + 2) === 'number') console.log(typeof (+true + 1) === 'number') console.log(typeof (+false + false) === 'number') console.log(typeof (+5 + 'abc') === 'number') console.log(typeof (+'abc' + false) === 'number') console.log(typeof (+'abc' + 'bar') === 'number') console.log(typeof -true) //=> 'number' console.log(typeof -false) //=> 'number' console.log(typeof -null) //=> 'number' console.log(typeof -undefined) //=> 'number' console.log(typeof -{}) //=> 'number' console.log(typeof -[]) //=> 'number' console.log(typeof -function() {}) //=> 'number' console.log(typeof -'foo') //=> 'number' console.log(typeof -new Date()) //=> 'number' console.log(typeof -new Buffer('')) //=> 'number' console.log(typeof -new Array('')) //=> 'number' console.log(typeof -NaN) //=> 'number' console.log(typeof -Infinity) //=> 'number' console.log(+true) //=> '1' console.log(+false) //=> '0' console.log(+null) //=> '0' console.log(+undefined) //=> 'NaN' console.log(+{}) //=> 'NaN' console.log(+[]) //=> '0' console.log(+function() {}) //=> 'NaN' console.log(+'foo') //=> 'NaN' console.log(+new Date()) //=> '1422091853924' console.log(+new Buffer('')) //=> '0' console.log(+new Array('')) //=> '0' console.log(+NaN) //=> 'NaN' console.log(+Infinity) //=> 'Infinity' console.log(!!(+true)); console.log(!!(+false)); console.log(!!(+null)); console.log(!!(+undefined)); console.log(!!(+{})); console.log(!!(+[])); console.log(!!(+function() {})); console.log(!!(+'foo')); console.log(!!(+new Date())); console.log(!!(+new Buffer(''))); console.log(!!(+new Array(''))); console.log(!!(+NaN)); console.log(!!(+Infinity)); console.log() console.log(!!(true)); console.log(!!(false)); console.log(!!(null)); console.log(!!(undefined)); console.log(!!({})); console.log(!!([])); console.log(!!(function() {})); console.log(!!('foo')); console.log(!!(new Date())); console.log(!!(new Buffer(''))); console.log(!!(new Array(''))); console.log(!!(NaN)); console.log(!!(Infinity)); is-number-4.0.0/index.js000066400000000000000000000007731317131422700150710ustar00rootroot00000000000000/*! * is-number * * Copyright (c) 2014-2017, Jon Schlinkert. * Released under the MIT License. */ 'use strict'; module.exports = function isNumber(num) { var type = typeof num; if (type === 'string' || num instanceof String) { // an empty string would be coerced to true with the below logic if (!num.trim()) return false; } else if (type !== 'number' && !(num instanceof Number)) { return false; } return (num - num + 1) >= 0; }; is-number-4.0.0/package.json000066400000000000000000000026111317131422700157030ustar00rootroot00000000000000{ "name": "is-number", "description": "Returns true if the value is a number. comprehensive tests.", "version": "4.0.0", "homepage": "https://github.com/jonschlinkert/is-number", "author": "Jon Schlinkert (https://github.com/jonschlinkert)", "contributors": [ "Jon Schlinkert (http://twitter.com/jonschlinkert)", "tunnckoCore (https://i.am.charlike.online)" ], "repository": "jonschlinkert/is-number", "bugs": { "url": "https://github.com/jonschlinkert/is-number/issues" }, "license": "MIT", "files": [ "index.js" ], "main": "index.js", "engines": { "node": ">=0.10.0" }, "scripts": { "test": "mocha" }, "devDependencies": { "benchmarked": "^2.0.0", "chalk": "^2.1.0", "gulp-format-md": "^1.0.0", "mocha": "^3.0.1" }, "keywords": [ "check", "coerce", "coercion", "integer", "is", "is-nan", "is-num", "is-number", "istype", "kind", "math", "nan", "num", "number", "numeric", "test", "type", "typeof", "value" ], "verb": { "related": { "list": [ "even", "is-even", "is-odd", "is-primitive", "kind-of", "odd" ] }, "toc": false, "layout": "default", "tasks": [ "readme" ], "plugins": [ "gulp-format-md" ], "lint": { "reflinks": true } } } is-number-4.0.0/test.js000066400000000000000000000051551317131422700147400ustar00rootroot00000000000000/*! * is-number * * Copyright (c) 2014-2017, Jon Schlinkert. * Licensed under the MIT License. */ 'use strict'; require('mocha'); var assert = require('assert'); var isNumber = require('./'); var shouldPass = [ 0xff, 5e3, 0, 0.1, -0.1, -1.1, 37, 3.14, 1, 1.1, 10, 10.10, 100, -100, '0.1', '-0.1', '-1.1', '0', '012', '0xff', '1', '1.1', '10', '10.10', '100', '5e3', ' 56\r\n ', // issue#3 Math.LN2, Number(1), new Number(1), // 012, Octal literal not allowed in strict mode parseInt('012'), parseFloat('012'), Math.abs(1), Math.acos(1), Math.asin(1), Math.atan(1), Math.atan2(1, 2), Math.ceil(1), Math.cos(1), Math.E, Math.exp(1), Math.floor(1), Math.LN10, Math.LN2, Math.log(1), Math.LOG10E, Math.LOG2E, Math.max(1, 2), Math.min(1, 2), Math.PI, Math.pow(1, 2), Math.pow(5, 5), Math.random(1), Math.round(1), Math.sin(1), Math.sqrt(1), Math.SQRT1_2, Math.SQRT2, Math.tan(1), Number.MAX_VALUE, Number.MIN_VALUE, '0.0', '0x0', '0e+5', '000', '0.0e-5', '0.0E5', +'', +1, +3.14, +37, +5, +[], +Boolean(true), +false, +Math.LN2, +String(100), +true, +null, +Number(1), +new Array(''), +new Array(0), +new Boolean(true), +new Buffer(''), +new Date, +new Date(), +new Number(1), ]; var shouldFail = [ ' ', // issue#3 '\r\n\t', // issue#3 '', '3a', 'abc', 'false', 'null', 'true', 'undefined', +'abc', +/foo/, +[1, 2, 4], +function() {}, +function() {}, +function() {}, +Infinity, +Math.sin, +NaN, +new Array('abc'), +new Array(2), +new RegExp('foo'), +new String("abc"), +String('foo'), +undefined, +{a:1}, +{}, // Symbol('foo'), // Symbol(), // Symbol.iterator, /foo/, [1, 2, 3], [1], [], Boolean(true), false, function() {}, function() {}, function() {}, Infinity, Math.sin, NaN, new Array(''), new Array('abc'), new Array(0), new Boolean(true), new Buffer(''), new Buffer('abc'), new Date(), new RegExp('foo'), new String("abc"), null, String("abc"), true, undefined, {a:1}, {abc: 'abc'}, {}, ]; describe('is a number', function() { shouldPass.forEach(function(num) { it('"' + JSON.stringify(num) + '" should be a number', function() { assert.equal(isNumber(num), true); }); }); }); describe('is not a number', function() { shouldFail.forEach(function(num) { it('"' + JSON.stringify(num) + '" should not be a number', function() { assert.equal(isNumber(num), false); }); }); });