JavaScript Advanced Training Course (i)

Execution context
Executable code Type-- Execution Context type

Global code-Global context

function code--function context

Eval code--eval context

Arguments values that exceed the number of incoming arguments are not shared with the parameter

Callee pointing to its own function

Number of length functions

 

Variable Object

The name of the formal parameter takes the last one

The declarative function name has a duplicate fetch last one

Variable and declarative functions have the highest precedence in declarative function names

function participates in variable precedence

Scope Chain

Array of n variable objects

Global Context

function context

Eval context

  

function expression is not created until this statement is executed

function Context Scope chain = active Object + context F.[[scope]]

Scope Chain Action

Statements that can change the scope chain when the program is run

With

Catch

This

Vo Object Storage--sc--Lookup

SC Array

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JavaScript Advanced Training Course (i)