在ECMA-262,5.x版 (又名。ECMAScript 5\ ES5),曾经有一个名为Creating Function Objects的第13.2节。
我一直在搜索最新版本的标准,ECMAScript 2017 (又名)。ECMAScript 8/ ES8),但找不到类似的描述。
ES8中的14.1节称为Function Definitions,这与ES5中的第13节相同。就这么远了。
他们把那整块都拿走了吗?我认为这是对定义新函数时实际发生的情况的非常有用的描述。
发布于 2018-03-26 19:01:21
由于函数对象和函数语法的种类越来越多,这种情况发生了一些变化。
在ES5我们有
10 Executable Code and Execution Contexts
…
10.4 Establishing an Execution Context
…
10.4.3 Entering Function Code
10.5 Declaration Binding Instantiation
10.6 Arguments Object
…
13 Function Definition
(syntax and evaluation of declarations and expressions)
13.1 Strict Mode Restrictions
13.2 Creating Function Objects
13.2.1 [[Call]]
13.2.2 [[Construct]]
13.2.3 The [[ThrowTypeError]] Function Object在ES8我们有
9 Ordinary and Exotic Objects Behaviours
9.1 Ordinary Object Internal Methods and Internal Slots
9.2 ECMAScript Function Objects
9.2.1 [[Call]] ( thisArgument, argumentsList )
9.2.2 [[Construct]] ( argumentsList, newTarget )
9.2.3 FunctionAllocate ( functionPrototype, strict, functionKind )
9.2.4 FunctionInitialize ( F, kind, ParameterList, Body, Scope )
9.2.5 FunctionCreate ( kind, ParameterList, Body, Scope, Strict [ , prototype ] )
9.2.6 GeneratorFunctionCreate ( kind, ParameterList, Body, Scope, Strict )
…
14 ECMAScript Language: Functions and Classes
14.1 Function Definitions
…
14.1.18 RS: EvaluateBody
14.1.19 RS: IteratorBindingInitialization
14.1.20 RS: InstantiateFunctionObject
14.1.21 RS: Evaluation
14.2 Arrow Function Definitions
…
14.3 Method Definitions
…
14.4 Generator Function Definitions
…
14.5 Class Definitions
…
14.6 Async Function Definitions
…
14.7 Async Arrow Function Definitions
…
…https://stackoverflow.com/questions/49496892
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