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kyo_ago id:kyo_ago

ECMAScript6ã«é–¢ã™ã‚‹kyo_agoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (13)

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ECMAScript6ã«ã‚·ãƒ³ãƒœãƒ«ãŒã§ããŸç†ç”±
ECMAScript6 (ES6, ES2015) ã§å°Žå…¥ã•ã‚ŒãŸæ–°æ©Ÿèƒ½ã®å¤§åŠã¯ã€èªã‚ã°ä¾¿åˆ©ã•ãŒæƒ³åƒãã‚‰ã„ã¯ã§ãã‚‹ã‘ã©ã€è‡ªåˆ†ã«ã¨ã£ã¦ã—ã°ã‚‰ãè¨³ãŒã‚ã‹ã‚‰ãªã‹ã£ãŸæ–°æ©Ÿèƒ½ãŒã€Œã‚·ãƒ³ãƒœãƒ«ã€ï¼ˆMDNã®ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ï¼‰ã€‚ã“ã‚Œã¾ã§æ–‡å—åˆ—ã ã‘ã§ä¸Šæ‰‹ãã‚„ã£ã¦ããŸJavaScriptã«ã€æ€¥ã«ãªãœã“ã‚“ãªã‚‚ã®ãŒå°Žå…¥ã•ã‚ŒãŸã®ï¼Ÿã€€ã‚¤ãƒžã‚¤ãƒåˆ†ã‹ã‚‰ãªã‹ã£ãŸã®ã§ã€èª¿ã¹ãŸã“ã¨ã®ã¾ã¨ã‚ã€‚ ã‚·ãƒ³ãƒœãƒ«ã®ç°¡å˜ãªãŠã•ã‚‰ã„ çŸ¥ã£ã¦ã‚‹äººã¯èªã¿é£›ã°ã—æŽ¨å¥¨ã€‚è©³ã—ãè¦‹ãŸã„äººã¯ã€ã“ã“ã¨ã‹ã®ä»–ã®ãƒšãƒ¼ã‚¸ã‚’å‚ç…§ã€‚ ES6ã§å°Žå…¥ã•ã‚ŒãŸã€ Symbol() ã§ä½œæˆã§ãã‚‹ç‰¹æ®Šãªå€¤ã€‚ Symbol() ã¯ã€ typeof ã™ã‚‹ã¨ 'number' ã§ã‚‚ 'string' ã§ã‚‚ 'object' ã§ã‚‚ãªãã¦ 'symbol' ã¨ãªã‚‹ã€ã¾ã£ãŸãæ–°ã—ã„ã‚¿ã‚¤ãƒ—ã®ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–å€¤ã‚’ç”Ÿæˆã™ã‚‹ã€‚ ä¸€æ—¦ä½œã£ãŸã‚·ãƒ³ãƒœãƒ«ã¯ã€ãã‚Œè‡ªèº«ã¨ã®ã¿ç‰ã—ããªã‚‹ã€ãƒ¦ãƒ‹ãƒ¼ã‚¯ãªIDã¨ã—ã¦æ©Ÿèƒ½ã™ã‚‹ã€‚ ===
kyo_ago 2015/10/27
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ES

ECMAScript

ECMAScript6

javascript

symbol

ES6

å‹‰å¼·

ES2015
ãƒªãƒ³ã‚¯
ES6 Symbol ã‚’ä½¿ã£ã¦ã‚ªãƒ¬ã‚ªãƒ¬ãƒ¡ã‚½ãƒƒãƒ‰ã‚’æ‹¡å¼µã™ã‚‹ - Qiita
ECMAScript6ã«ã‚·ãƒ³ãƒœãƒ«ãŒã§ããŸç†ç”± ã§ç´¹ä»‹ã•ã‚Œã¦ã„ã‚‹ Symbol ã®ä½¿ã„æ–¹ã‚’è¦‹ã¦ã€fmfm ã™ã‚‹ãŸã‚ã®ã‚¨ãƒ³ãƒˆãƒªã§ã™ã€‚ ä¼¼ã¦éžãªã‚‹ 2ã¤ã® NativeObject æ‹¡å¼µãƒ©ã‚¤ãƒ–ãƒ©ãƒªã‚’åŒæ™‚ã«èªã¿è¾¼ã‚€ã¨ã©ã†ãªã‚‹ã‹ ä¾‹ Array ã« JSON.stringify(Array) ç›¸å½“ã®æ©Ÿèƒ½ã‚’æ‹¡å¼µã™ã‚‹ãƒ©ã‚¤ãƒ–ãƒ©ãƒªãŒ2ã¤(AwesomeArray.js, ExArray.js)ã‚ã‚Šã¾ã™ã€‚ã“ã‚Œã‚‰ã‚’èªã¿è¾¼ã‚€ã¨ Array#toJSON ãŒæ‹¡å¼µã•ã‚Œã¾ã™ã€‚ AwesomeArray.js ã¨ ExArray.js ã«ã¯ã€ã‚«ãƒ³ãƒžã®å¾Œã‚ã«ã‚¹ãƒšãƒ¼ã‚¹ãŒã‚ã‚‹/ãªã„ ã¨ã„ã†é•ã„ãŒã‚ã‚Šã¾ã™ã€‚ ES5 å¼ ES5 ã§æ›¸ã‹ã‚ŒãŸ AwesomeArray.js ã¨ ExArray.js ã§ã™ã€‚ ES5 ã¾ã§ã¯ã€AwesomeArray.js ã‚’èªã¿è¾¼ã‚“ã å¾Œã« ExArray.js ã‚’èªã¿è¾¼ã‚€ã¨ã€AwesomeArray
kyo_ago 2015/10/26
enum

ECMAScript6

javascript

JSON

console.log

String

ãƒ¡ã‚½ãƒƒãƒ‰

ãƒ©ã‚¤ãƒ–ãƒ©ãƒª

ã‚ªãƒ¬ã‚ªãƒ¬
ãƒªãƒ³ã‚¯
Domain error
Domain error Failed to resolve DNS path for this host
kyo_ago 2015/08/18
CommonJS

ES6

ECMAScript6

webpack

typescript

module
ãƒªãƒ³ã‚¯
Symbolã«ã¤ã„ã¦ - JS.next
æ¦‚è¦ ES2015ã§ã¯Undefinedã€Nullã€Booleanã€Numberã€Stringã€Objectã®ï¼–ã¤ã®åž‹ã«åŠ ãˆã¦ã€æ–°ã—ã„åž‹SymbolãŒå°Žå…¥ã•ã‚ŒãŸã€‚ ã‚·ãƒ³ãƒœãƒ«ã¯ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–åž‹ã§ã€æ–‡å—åˆ—ã®ã‚ˆã†ã«ãƒ—ãƒãƒ‘ãƒ†ã‚£ã®ã‚ãƒ¼ã¨ã—ã¦ä½¿ãˆã‚‹ç‰¹å¾´ã‚’æŒã¤ã€‚ æŒ¯ã‚‹èˆžã„ ã‚·ãƒ³ãƒœãƒ«ã¯Symbolã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ã‚’å‘¼ã¶ã“ã¨ã§ä½œã‚‰ã‚Œã€ãã®æ™‚ã«å¼•æ•°ã¨ã—ã¦æ–‡å—åˆ—ã‚’æ¸¡ã›ã°åå‰ã‚’æŒãŸã›ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ sym1 = Symbol() sym2 = Symbol('name') typeofæ¼”ç®—åã§è©•ä¾¡ã™ã‚‹ã¨"symbol"ãŒè¿”ã•ã‚Œã‚‹ã€‚ typeof sym1 // "symbol" Symbolã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ã‚’newä»˜ãã§å‘¼ã³å‡ºã™ã“ã¨ã¯å‡ºæ¥ãªã„ãŒã€ã‚·ãƒ³ãƒœãƒ«ã‚’Objectã‚³ãƒ³ã‚¹ãƒˆãƒ©ã‚¯ã‚¿ã«æ¸¡ã™ã“ã¨ã§ãƒ©ãƒƒãƒ—ã™ã‚‹ã“ã¨ã¯ã§ãã‚‹ã€‚ new Symbol() // TypeError symobj = Object(sym2) ty
kyo_ago 2015/06/03
ecmascript

es6

ecmascript6

javascript

ECMA6

symbol

programming
ãƒªãƒ³ã‚¯
Hello, ES6 ~ã“ã‚Œã‹ã‚‰è¿Žãˆã‚‹JSã®ãƒŸãƒ©ã‚¤~ - @yoshiko_pg
kyo_ago 2015/05/12
ES6

development

ECMAScript6

javascript

js

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

presentation

IT
ãƒªãƒ³ã‚¯
new.targetãƒ¡ã‚¿ãƒ—ãƒãƒ‘ãƒ†ã‚£ã«ã¤ã„ã¦ - JS.next
æ¦‚è¦ ã€Œnew.targetã€ã¨ã¯ã€ES2015ã§å°Žå…¥ã•ã‚ŒãŸãƒ“ãƒ«ãƒˆã‚¤ãƒ³ã‚¯ãƒ©ã‚¹ã®ã‚µãƒ–ã‚¯ãƒ©ã‚¹ã‚’ä½œã‚‹ä¸Šã§æ¬ ã‹ã›ãªã„å˜åœ¨ã§ã‚ã‚‹[[newTarget]]ã‚’å–å¾—ã™ã‚‹ãŸã‚ã®ãƒ¡ã‚¿ãƒ—ãƒãƒ‘ãƒ†ã‚£ã§ã‚ã‚‹ã€‚ å¾“æ¥ã®å•é¡Œç‚¹ ES5ã¾ã§ã¯Arrayã®ã‚ˆã†ãªãƒ“ãƒ«ãƒˆã‚¤ãƒ³ã‚¯ãƒ©ã‚¹ã‚’é©åˆ‡ã«ç¶™æ‰¿ã—ãŸã‚µãƒ–ã‚¯ãƒ©ã‚¹ã‚’ä½œã‚‹ã“ã¨ãŒã§ããªã‹ã£ãŸã€‚ ES2015ã‹ã‚‰ã®ãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—è¨å®šæ©Ÿèƒ½ã‚’ä½¿ã†ã¨å¯èƒ½ã§ã‚ã‚Šã€ã“ã®ã‚ˆã†ã«ãªã‚‹ã€‚ class Stack extends Array { constructor( ...args ) { var stack = new Array( ...args ) return Object.setPrototypeOf( stack, Stack.prototype ) } clear() { this.length = 0 } } ã—ã‹ã—æ¯Žå›žã“ã®ã‚ˆã†ã«æ›¸ã‹ãªã„ã¨ã„ã‘ãªã„ã®ã¯ã‚¹ãƒžãƒ¼ãƒˆã§ã¯ãªã„ã€‚ ã§ãã‚Œã°ã“ã®æ§˜ã«æ›¸
kyo_ago 2015/03/25
ES6

class

ECMAScript

ECMAScript6

JavaScript

v8
ãƒªãƒ³ã‚¯
ECMAScriptæ²¡proposalè¿½æ‚¼å¼
[DLè¼ªèªä¼š]Pixel2Mesh: Generating 3D Mesh Models from Single RGB Images
kyo_ago 2015/03/17
ECMAScript

ES6

ECMAScript6

javascript

slide

ã‚¹ãƒ©ã‚¤ãƒ‰

neta

æ¨™æº–åŒ–

presentation
ãƒªãƒ³ã‚¯
EcmaScript6 + power-assert ã§ãƒ†ã‚¹ãƒˆã‚’æ›¸ã - from scratch
ã“ã®è¨˜äº‹ã¯JavaScript Advent Calendar 2014ã®15æ—¥ç›®ã®è¨˜äº‹ã§ã™ã€‚ ã•ã¦ã•ã¦ã€EcmaScript6ã«å¯¾ã™ã‚‹æ©Ÿé‹ãŒé«˜ã¾ã£ã¦ã„ã‚‹ä¸ã§ã€ES6ã®æ–°æ©Ÿèƒ½ã®ç´¹ä»‹è¨˜äº‹ãŒå‡ºã¦ãã¦ãŠã‚Šã¾ã™ãŒã€ES6ãŒä½¿ãˆã‚‹ãƒ–ãƒ©ã‚¦ã‚¶ã¯ã¾ã æµ¸é€ã—ã¦ãŠã‚‰ãšã€ä½¿ãŠã†ã¨ã™ã‚‹ãªã‚‰ã°Traceur Compilerã‚„6to5ã¨ã„ã£ãŸãƒˆãƒ©ãƒ³ã‚¹ãƒ‘ã‚¤ãƒ©ã‚’åˆ©ç”¨ã›ã–ã‚‹ã‚’å¾—ãªã„ã¨ã„ã†ã®ãŒç¾çŠ¶ã§ã™ã€‚ ã“ã‚Œã‚‰ã®ãƒˆãƒ©ãƒ³ã‚¹ãƒ‘ã‚¤ãƒ©ã‚‚å®Ÿéš›ã®ãƒ—ãƒãƒ€ã‚¯ãƒˆã§ä½¿ãŠã†ã¨ã™ã‚‹ã¨ã¾ã ãã“ã¾ã§å®Ÿç¸¾ãŒãªã„ã—ã€ã„ããªã‚Šæœ¬ç•ªã§ä½¿ã†ã¨ã„ã†è¨³ã«ã„ã‹ãªã„äººé”ãŒå¤šã„ã‹ã¨æ€ã£ã¦ã„ã¾ã™ã€‚ ãŸã ã—ã€ES6ã«ã¯æ…£ã‚Œã¦ãŠããŸã„ã€ã€ã€ES6ã®æ–°æ©Ÿèƒ½(let, template-string, arrow function, generator, promise, etc...)ã‚’ä½¿ã£ã¦ã¿ãŸã„ã€ã€ã€ ãªã‚‰ã°ã›ã‚ã¦ãƒ†ã‚¹ãƒˆã ã‘ã§ã‚‚ES6ã§æ›¸ã“ã†ã˜ã‚ƒãªã„ã‹ã€ã„ãšã‚ŒES6ãŒæ¥ãŸæ™‚
kyo_ago 2014/12/16
ES6

assert

ECMAScript6

javascript

ecmascript

power-assert

test

testing

mocha
ãƒªãƒ³ã‚¯
AltJSã®é¸ã³æ–¹ãƒ•ãƒãƒ¼ãƒãƒ£ãƒ¼ãƒˆ - Qiita
JavaScriptã‚ã‹ã‚‹ - YES åž‹ãŒã»ã—ã„ - YES Flash/ActionScript3ãŒé’æ˜¥ã ã£ãŸ - YES Haxe - NO DeNAã«å‹¤ã‚ã¦ã„ã‚‹ - YES JSX - NO TypeScript - NO Ruby or Python ãŒå¥½ã - YES coffee-script - NO ã‚¯ãƒ©ã‚¹ã¯ã»ã—ã„ - YES EcmaScript6(Traceur Compiler) or CoffeeScript - NO JavaScriptã®æ–‡æ³•ã«ä¸æº€ãŒã‚ã‚‹ - YES https://github.com/jashkenas/coffeescript/wiki/List-of-languages-that-compile-to-JS - NO JavaScriptæ›¸ã‘ã‚ˆ - NO é–¢æ•°åž‹ã‚ã‹ã‚‹ - YES è‡ªåˆ†ã®å¥½ããªè¨€èªžã«æ·±ãç²¾é€šã—ã¦ã„ã‚‹ - YES å¥½ããªè¨€
kyo_ago 2014/11/07
javascript

coffeescript

js_of_ocaml

js

ActionScript

jsx

Haskell

Haxe

ECMAScript6

DeNA
ãƒªãƒ³ã‚¯
ECMAScript6ã«ã‚ˆã‚‹é–¢æ•°åž‹ãƒ•ã‚šãƒã‚¯ã‚™ãƒ©ãƒŸãƒ³ã‚¯ã‚™
Architecture of Falcon, a new chat messaging backend system build on Scala
kyo_ago 2014/10/30
ECMA

ECMAScript

javascript

ECMAScript6

C++

edit

from mikutter
ãƒªãƒ³ã‚¯
Firefox 34(Nightly)ã§ String.raw ãŒå®Ÿè£…ã•ã‚ŒãŸä»¶ã¨TaggedTemplateã«ã¤ã„ã¦ - hogehoge @teramako
1039774 - Implement ES6 String.raw ä»•æ§˜ 12.3.7 Tagged Templates 21.1.2.4 String.raw TemplateLiteral ã®ç¶šãã€‚ å‰å›žã¯ã€`(ãƒãƒƒã‚¯ã‚¯ã‚©ãƒ¼ãƒˆ) ã§ããã‚‹ã“ã¨ã§ã€ãƒ’ã‚¢ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆçš„ãªè¤‡æ•°è¡Œã«æ¸¡ã‚‹æ–‡å—åˆ—ã®ç”ŸæˆãŒã§ãã‚‹äº‹ã€${expression}ã§å¼ã®åŸ‹ã‚è¾¼ã¿ãŒã§ãã‚‹äº‹ã‚’æ›¸ã„ãŸã€‚ å®Ÿã¯ã€func`...` ã¨ã„ã†æ§‹æ–‡ã®è¿½åŠ ã‚‚ã‚ã‚Šã€funcã‚’æ–‡å—åˆ—ã®ç´ ã¨ãªã‚‹å€¤ã‚’å¼•æ•°ã«å‘¼ã³å‡ºã™æ©Ÿèƒ½ã‚‚ã‚ã‚‹ã€‚String.rawã¯ãã®ãŸã‚ã®ãƒ¡ã‚½ãƒƒãƒ‰ã ã€‚func`...`ã¿ãŸã„ãªã‚³ãƒ¼ãƒ‰ã¯TaggedTemplateã¨å‘¼ã°ã‚Œã¦ã„ã‚‹ã€‚ String.raw`Title: ${document.title}` // => "Title: hogehoge@teramako" // === `Tit lte: ${document.tit
kyo_ago 2014/08/23
document

buzz

Firefox

ES6

JavaScript

ECMAScript

ECMAScript6
ãƒªãƒ³ã‚¯
TypeScriptã¨ECMAScript 6 - Qiita
block scope bindings block scope bindings let const block functions? TypeScript â†’ æ¤œè¨Žä¸ #19 å€‹äººçš„ã«ã¯ã‹ãªã‚Šæ¬²ã—ã„ã€‚é ‘å¼µã‚Œã° arrow function expression ã®ã‚ˆã†ã«polyfillçš„ãªå®Ÿè£…ã‚’åã‘ã‚‹ã¨æ€ã†ã®ã§ã€ãã‚Œã‚„ã£ã¦ã»ã—ã„ãªãâ€¦ã€‚ Traceurã¡ã£ããªã“ã¨ã‚’ã¤ã„æ±‚ã‚ãŸããªã£ã¦ã—ã¾ã†ã‘ã©å¤šåˆ†TypeScriptãƒãƒ¼ãƒ ã¯ãã“ã¯ã‚ã‚“ã¾ã—é ‘å¼µã‚‹æ°—ãŒãªã„ã¨æ€ã†ã€‚ ã¦ã„ã†ã‹ block functions ã£ã¦ãªã‚“ãªã‚“ã˜ã‚ƒã‚ã€‚ destructuring destructuring refutable matching ã“ã‚Œç¾åœ¨ã®ãƒ‰ãƒ©ãƒ•ãƒˆã«å…¥ã£ã¦ãªã„ã‚ˆãï¼Ÿ åˆ†å‰²ä»£å…¥ã®ã“ã¨ã€‚CoffeeScriptã§æ˜”ã‹ã‚‰ä½¿ãˆã‚‹ã®ã§çŸ¥ã£ã¦ã‚‹äººã‚‚å¤šã„ã¨æ€ã†ã€‚ è„±æ§‹é€ ã¨ã‹ãƒ€ã‚µã„è¨³ã‚’ã‚ã¦ã‚‰ã‚Œã¦ã‚‹ã“ã¨ã‚‚ã‚ã‚‹æ°—ãŒã™ã‚‹
kyo_ago 2014/08/21
ECMAScript

function

ECMAScript6

javascript

TypeScript

es6

arrow

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°
ãƒªãƒ³ã‚¯
NaN ã‚’ãªã‚“ã¨ã‹ã—ãŸã„ä¸Šã§ã®è«¸æ³¨æ„ ã¨ global.isFinite() ã®ç½ - Qiita
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kyo_ago 2012/09/26
è¨å®š

javascript

ECMAScript

ECMAScript6
ãƒªãƒ³ã‚¯
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