仕様書

意味

[1]

An object is a member of the type Object. It is an unordered collection of properties each of which contains a primitive value, object, or function. A function stored in a property of an object is called a method.

[2]

ECMAScript is object-based: basic language and host facilities are provided by objects, and an ECMAScript program is a cluster of communicating objects. An ECMAScript object is an unordered collection of properties each with zero or more attributes that determine how each property can be used ...; an object is a member of the remaining built-in type Object; and a method is a function associated with an object via a property.

状態

[4]

[[Call]]

あり ES3 15.2.1.1

[[CanPut]]

標準 ES3 18.6.2.3

[[Class]]

"Function" ES3 15

[[Construct]]

あり ES3 15.2.2.1

[[Default]]

標準 ES3 18.6.2.6

[[Delete]]

標準 ES3 18.6.2.5

[[Get]]

標準 ES3 18.6.2.1

[[HasProperty]]

標準 ES3 18.6.2.4

[[Prototype]]

Functionプロトタイプ・オブジェクト ES3 15.2.3

[[Put]]

標準 ES3 18.6.2.2

特性

[3]

length	ECMA 標準	ES3
prototype	ECMA 標準	ES3

Object プロトタイプ・オブジェクト

オブジェクト (JSON)

[9] JSON におけるオブジェクトobjectは、 零個以上の名前と値の組の順序を持たない集成です。 ただし、名前は文字列であり、値は文字列、数値、boolean、 null、オブジェクト、配列のいずれかです。

オブジェクト (Web IDL)

[11] オブジェクトは、 プラットフォームオブジェクトか利用者オブジェクトか、 どちらでもないものです >>10。

[12] 初期オブジェクトもあります。

歴史

[13] Write structured clone algorithm in terms of ECMAScript · whatwg/html@bfb960c (2016-03-02 16:44:14 +09:00 版) https://github.com/whatwg/html/commit/bfb960c938580c95e77365e614218b952f96375b

[14] Only clone own properties of ordinary objects and arrays · whatwg/html@31ef428 (2016-03-02 16:48:25 +09:00 版) https://github.com/whatwg/html/commit/31ef4285935eb22516fc054c42db6a0dc36d580b

[15] Gloss Web IDL "object" instead of "Object" · whatwg/html@ea7db14 (2016-03-11 15:44:00 +09:00 版) https://github.com/whatwg/html/commit/ea7db14e4d8a547811777f12abe81e02ea5b10e9

[16] Breaking: refactor structured clone into serialize/deserialize (domenic著, 2017-03-21 06:09:33 +09:00) https://github.com/whatwg/html/commit/97d644c97335956610a31e8ad98d1a388c063e84

[17] Add an algorithm to create a platform object (Ms2ger著, 2019-01-31 01:40:11 +09:00) https://github.com/heycam/webidl/commit/8e1b52942525e9135885eba8aa68c028d2c6a5be

[18] Add an algorithm to create a platform object. by Ms2ger · Pull Request #635 · heycam/webidl (2019-07-15 20:21:33 +09:00) https://github.com/heycam/webidl/pull/635