{"json_modified": "2015-05-12T22:00:00.909619", "slug": "Web/JavaScript/Reference", "tags": ["JavaScript"], "locale": "en-US", "title": "JavaScript reference", "translations": [{"title": "JavaScript reference", "url": "/ar/docs/Web/JavaScript/Reference", "tags": ["TopicStub", "NeedsTranslation", "JavaScript"], "summary": "This part of the JavaScript section on MDN serves as a repository of facts about the JavaScript language. Read more <a href=\"/en-US/docs/Web/JavaScript/Reference/About\">about this reference</a>.", "localization_tags": ["inprogress"], "locale": "ar", "last_edit": "2014-09-09T14:29:03", "review_tags": []}, {"title": "\u099c\u09be\u09ad\u09be\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09aa\u09cd\u099f \u09b0\u09c7\u09ab\u09be\u09b0\u09c7\u09a8\u09cd\u09b8", "url": "/bn-BD/docs/Web/JavaScript/Reference", "tags": ["JavaScript"], "summary": "This part of the JavaScript section on MDN serves as a repository of facts about the JavaScript language. Read more <a href=\"/en-US/docs/Web/JavaScript/Reference/About\">about this reference</a>.", "localization_tags": ["inprogress"], "locale": "bn-BD", "last_edit": "2015-04-26T05:18:07", "review_tags": []}, {"title": "Glossari de JavaScript", "url": "/ca/docs/Web/JavaScript/Referencia", "tags": [], "summary": "Aquesta part de la secci\u00f3 de JavaScript a l'MDN serveix com a glossari de informaci\u00f3 sobre el llenguatge JavaScript. Podeu llegir m\u00e9s <a href=\"/ca/docs/Web/JavaScript/Reference/About\">sobre aquest glossari</a>.", "localization_tags": [], "locale": "ca", "last_edit": "2015-02-07T04:03:42", "review_tags": ["editorial"]}, {"title": "JavaScript reference", "url": "/cs/docs/Web/JavaScript/Reference", "tags": ["JavaScript"], "summary": "This part of the JavaScript section on MDN serves as a repository of facts about the JavaScript language. Read more <a href=\"/en-US/docs/Web/JavaScript/Reference/About\">about this reference</a>.", "localization_tags": ["inprogress"], "locale": "cs", "last_edit": "2015-04-26T07:35:07", "review_tags": []}, {"title": "JavaScript-Referenz", "url": "/de/docs/Web/JavaScript/Reference", "tags": ["JavaScript"], "summary": "Dieses Kapitel des JavaScript-Teils auf MDN dient als JavaScript-Sprachreferenz. Mehr <a href=\"/de/docs/Web/JavaScript/Reference/About\">\u00fcber diese Referenz</a>.", "localization_tags": [], "locale": "de", "last_edit": "2015-04-04T02:31:26", "review_tags": []}, {"title": "Referencia de JavaScript", "url": "/es/docs/Web/JavaScript/Referencia", "tags": ["JavaScript"], "summary": "For an alphabetical listing see the sidebar on the left.", "localization_tags": [], "locale": "es", "last_edit": "2015-04-27T01:27:08", "review_tags": []}, {"title": "JavaScript reference", "url": "/fa/docs/Web/JavaScript/Reference", "tags": ["TopicStub", "NeedsTranslation", "JavaScript"], "summary": "This part of the JavaScript section on MDN serves as a repository of facts about the JavaScript language. Read more <a href=\"/en-US/docs/Web/JavaScript/Reference/About\">about this reference</a>.", "localization_tags": ["inprogress"], "locale": "fa", "last_edit": "2014-09-09T14:29:03", "review_tags": []}, {"title": "R\u00e9f\u00e9rence JavaScript", "url": "/fr/docs/Web/JavaScript/Reference", "tags": ["JavaScript"], "summary": "Cette partie de la section JavaScript de MDN regroupe plusieurs notions sur le langage JavaScript. En savoir plus <a href=\"/fr/docs/Web/JavaScript/Reference/A_propos\">\u00e0 propos de cette r\u00e9f\u00e9rence</a>.", "localization_tags": [], "locale": "fr", "last_edit": "2015-03-01T12:57:33", "review_tags": []}, {"title": "JavaScript Reference", "url": "/id/docs/Web/JavaScript/Reference", "tags": [], "summary": "Pengalaman menggunakan bahasa pemrograman lainnya dapat menjadi manfaa, meskipun tidak menjadi prasyarat.", "localization_tags": [], "locale": "id", "last_edit": "2014-06-25T02:02:11", "review_tags": []}, {"title": "Riferimento JavaScript", "url": "/it/docs/Web/JavaScript/Reference", "tags": ["TopicStub", "JavaScript"], "summary": "Questa sezione riguardante JavaScript contiene informazioni riguardo a tale linguaggio. Leggi altre informazioni <a href=\"/it/docs/Web/JavaScript/Reference/About\" title=\"The documentation about this has not yet been written; please consider contributing!\">riguardo a questa documentazione</a>.", "localization_tags": ["inprogress"], "locale": "it", "last_edit": "2015-04-19T04:03:03", "review_tags": []}, {"title": "JavaScript \u30ea\u30d5\u30a1\u30ec\u30f3\u30b9", "url": "/ja/docs/Web/JavaScript/Reference", "tags": ["AJAX", "JavaScript Reference", "JavaScript"], "summary": "\u3053\u306eJavaScript\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u3001JavaScript\u306b\u3064\u3044\u3066\u5b9f\u969b\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u3068\u3057\u3066\u5f79\u306b\u7acb\u3061\u307e\u3059\u3002 \u3055\u3089\u306b\u306f\u3001<a href=\"/docs/Web/JavaScript/Reference/About\">\u3053\u3061\u3089\u306e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9</a>\u3092\u53c2\u7167\u3057\u3066\u4e0b\u3055\u3044\u3002", "localization_tags": ["inprogress"], "locale": "ja", "last_edit": "2015-04-22T05:05:26", "review_tags": ["editorial"]}, {"title": "JavaScript \ucc38\uace0\uc790\ub8cc", "url": "/ko/docs/Web/JavaScript/Reference", "tags": ["AJAX", "JavaScript Reference", "JavaScript"], "summary": "", "localization_tags": [], "locale": "ko", "last_edit": "2015-02-08T20:12:05", "review_tags": []}, {"title": "JavaScript Referencje", "url": "/pl/docs/Web/JavaScript/Referencje", "tags": ["AJAX", "Dokumentacja_JavaScript", "JavaScript", "Dokumentacje", "Wszystkie_kategorie"], "summary": "", "localization_tags": [], "locale": "pl", "last_edit": "2014-05-31T00:09:35", "review_tags": []}, {"title": "Refer\u00eancia JavaScript", "url": "/pt-BR/docs/Web/JavaScript/Reference", "tags": ["TopicStub"], "summary": "Declara\u00e7\u00f5es Globais:", "localization_tags": [], "locale": "pt-BR", "last_edit": "2014-06-24T06:57:26", "review_tags": []}, {"title": "JavaScript reference", "url": "/pt-PT/docs/Web/JavaScript/Reference", "tags": ["TopicStub", "NeedsTranslation", "JavaScript"], "summary": "This part of the JavaScript section on MDN serves as a repository of facts about the JavaScript language. Read more <a href=\"/en-US/docs/Web/JavaScript/Reference/About\">about this reference</a>.", "localization_tags": ["inprogress"], "locale": "pt-PT", "last_edit": "2014-09-09T14:29:03", "review_tags": []}, {"title": "JavaScript Reference", "url": "/ro/docs/Web/JavaScript/Reference", "tags": [], "summary": "Global statements:", "localization_tags": [], "locale": "ro", "last_edit": "2013-09-11T09:35:19", "review_tags": []}, {"title": "\u0421\u043f\u0440\u0430\u0432\u043e\u0447\u043d\u0438\u043a \u043f\u043e JavaScript", "url": "/ru/docs/Web/JavaScript/Reference", "tags": ["JavaScript"], "summary": "\u042d\u0442\u0430 \u0447\u0430\u0441\u0442\u044c \u0440\u0430\u0437\u0434\u0435\u043b\u0430 MDN \u043f\u043e JavaScript \u0441\u043b\u0443\u0436\u0438\u0442 \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0435\u043c \u0444\u0430\u043a\u0442\u043e\u0432 \u043e \u044f\u0437\u044b\u043a\u0435 JavaScript. \u0411\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u0443\u044e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044e \u043e\u0431 \u044d\u0442\u043e\u043c \u0441\u043f\u0440\u0430\u0432\u043e\u0447\u043d\u0438\u043a\u0435 \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c <a href=\"/ru/docs/Web/JavaScript/Reference/About\">\u0437\u0434\u0435\u0441\u044c</a>.", "localization_tags": [], "locale": "ru", "last_edit": "2014-09-10T04:55:12", "review_tags": []}, {"title": "JavaScript reference", "url": "/th/docs/Web/JavaScript/Reference", "tags": ["TopicStub", "NeedsTranslation", "JavaScript"], "summary": "", "localization_tags": ["inprogress"], "locale": "th", "last_edit": "2014-06-17T18:34:12", "review_tags": []}, {"title": "JavaScript Referans\u0131", "url": "/tr/docs/Web/JavaScript/Reference", "tags": ["JavaScript"], "summary": "This part of the JavaScript section on MDN serves as a repository of facts about the JavaScript language. Read more <a href=\"/en-US/docs/Web/JavaScript/Reference/About\">about this reference</a>.", "localization_tags": ["inprogress"], "locale": "tr", "last_edit": "2015-04-28T06:42:32", "review_tags": []}, {"title": "JavaScript reference", "url": "/vi/docs/Web/JavaScript/Reference", "tags": ["TopicStub", "NeedsTranslation", "JavaScript"], "summary": "This part of the JavaScript section on MDN serves as a repository of facts about the JavaScript language. Read more <a href=\"/en-US/docs/Web/JavaScript/Reference/About\">about this reference</a>.", "localization_tags": ["inprogress"], "locale": "vi", "last_edit": "2015-01-14T21:08:45", "review_tags": []}, {"title": "JavaScript\u53c2\u8003\u6587\u6863", "url": "/zh-CN/docs/Web/JavaScript/Reference", "tags": [], "summary": "\u5168\u5c40\u8bed\u53e5:", "localization_tags": [], "locale": "zh-CN", "last_edit": "2014-05-05T23:51:31", "review_tags": []}, {"title": "JavaScript \u53c3\u8003\u8cc7\u6599", "url": "/zh-TW/docs/Web/JavaScript/Reference", "tags": ["TopicStub", "NeedsTranslation"], "summary": "\u5168\u57df\u9673\u8ff0\uff1a", "localization_tags": [], "locale": "zh-TW", "last_edit": "2014-07-04T07:14:10", "review_tags": []}], "modified": "2015-05-07T23:23:01", "label": "JavaScript reference", "localization_tags": [], "url": "/en-US/docs/Web/JavaScript/Reference", "last_edit": "2015-01-14T21:08:45", "summary": "This part of the JavaScript section on MDN serves as a repository of facts about the JavaScript language. Read more <a href=\"/en-US/docs/Web/JavaScript/Reference/About\">about this reference</a>.", "sections": [{"id": "Quick_Links", "title": "JavaScript Tutorials: JavaScript Guide Introduction Grammar and types Control flow and error handling Loops and iteration Functions Expressions and operators Numbers and dates Text formatting Regular expressions Indexed collections Keyed collections Working with objects Details of the object model Iterators and generators Meta programming Introductory JavaScript basics JavaScript technologies overview Introduction to Object Oriented JavaScript Intermediate A re-introduction to JavaScript JavaScript data structures Equality comparisons and sameness Closures Advanced Inheritance and the prototype chain Strict mode JavaScript typed arrays Memory Management Concurrency model and Event Loop References: Built-in objects Standard built-in objects Array ArrayBuffer Boolean DataView Date Error EvalError Float32Array Float64Array Function Generator GeneratorFunction Infinity Int16Array Int32Array Int8Array InternalError Intl Intl.Collator Intl.DateTimeFormat Intl.NumberFormat Iterator JSON Map Math NaN Number Object ParallelArray Promise Proxy RangeError ReferenceError Reflect RegExp SIMD SIMD.float32x4 SIMD.float64x2 SIMD.int16x8 SIMD.int32x4 SIMD.int8x16 Set StopIteration String Symbol SyntaxError TypeError TypedArray URIError Uint16Array Uint32Array Uint8Array Uint8ClampedArray WeakMap WeakSet decodeURI() decodeURIComponent() encodeURI() encodeURIComponent() escape() eval() isFinite() isNaN() null parseFloat() parseInt() undefined unescape() uneval() Expressions & operators Expressions and operators Arithmetic operators Array comprehensions Assignment operators Bitwise operators Comma operator Comparison operators Conditional (ternary) Operator Destructuring assignment Expression closures Generator comprehensions Grouping operator Legacy generator function expression Logical Operators Object initializer Operator precedence Property accessors Spread operator class expression delete operator function expression function* expression in operator instanceof new operator super this typeof void operator yield yield* Statements & declarations Statements and declarations Legacy generator function block break class const continue debugger do...while empty export for for each...in for...in for...of function function* if...else import label let return switch throw try...catch var while with Functions Functions Arguments object Arrow functions Default parameters Method definitions Rest parameters getter setter Classes Classes constructor extends static Misc Lexical grammar JavaScript data structures Enumerability and ownership of properties Iteration protocols Strict mode Transitioning to strict mode Template strings Deprecated features New in JavaScript New in JavaScript ECMAScript 5 support in Mozilla ECMAScript 6 support in Mozilla ECMAScript 7 support in Mozilla Firefox JavaScript changelog New in JavaScript 1.1 New in JavaScript 1.2 New in JavaScript 1.3 New in JavaScript 1.4 New in JavaScript 1.5 New in JavaScript 1.6 New in JavaScript 1.7 New in JavaScript 1.8 New in JavaScript 1.8.1 New in JavaScript 1.8.5 Documentation: Useful lists All pages index Methods index Properties index Pages tagged \"JavaScript\" Contribute JavaScript doc status The MDN project"}, {"id": "Global_Objects", "title": "Global Objects"}, {"id": "Value_properties", "title": "Value properties"}, {"id": "Function_properties", "title": "Function properties"}, {"id": "Fundamental_objects", "title": "Fundamental objects"}, {"id": "Numbers_and_dates", "title": "Numbers and dates"}, {"id": "Text_processing", "title": "Text processing"}, {"id": "Indexed_collections", "title": "Indexed collections"}, {"id": "Keyed_collections", "title": "Keyed collections"}, {"id": "Vector_collections", "title": "Vector collections"}, {"id": "Structured_data", "title": "Structured data"}, {"id": "Control_abstraction_objects", "title": "Control abstraction objects"}, {"id": "Reflection", "title": "Reflection"}, {"id": "Internationalization", "title": "Internationalization"}, {"id": "Non-standard_objects", "title": "Non-standard objects"}, {"id": "Other", "title": "Other"}, {"id": "Statements", "title": "Statements"}, {"id": "Control_flow", "title": "Control flow"}, {"id": "Declarations", "title": "Declarations"}, {"id": "Functions_and_classes", "title": "Functions and classes"}, {"id": "Iterations", "title": "Iterations"}, {"id": "Others", "title": "Others"}, {"id": "Expressions_and_operators", "title": "Expressions and operators"}, {"id": "Primary_expressions", "title": "Primary expressions"}, {"id": "Left-hand-side_expressions", "title": "Left-hand-side expressions"}, {"id": "Increment_and_decrement", "title": "Increment and decrement"}, {"id": "Unary_operators", "title": "Unary operators"}, {"id": "Arithmetic_operators", "title": "Arithmetic operators"}, {"id": "Relational_operators", "title": "Relational operators"}, {"id": "Equality_operators", "title": "Equality operators"}, {"id": "Bitwise_shift_operators", "title": "Bitwise shift operators"}, {"id": "Binary_bitwise_operators", "title": "Binary bitwise operators"}, {"id": "Binary_logical_operators", "title": "Binary logical operators"}, {"id": "Conditional_(ternary)_operator", "title": "Conditional (ternary) operator"}, {"id": "Assignment_operators", "title": "Assignment operators"}, {"id": "Comma_operator", "title": "Comma operator"}, {"id": "Non-standard_features", "title": "Non-standard features"}, {"id": "Functions", "title": "Functions"}, {"id": "Additional_reference_pages", "title": "Additional reference pages"}], "id": 5612, "review_tags": []}