c set scope

Each programming language, its variables have a certain range of valid, beyond this range, the variable is invalid, which is the scope of the variable. From the point of view of mathematics, it is the field of the independent variable. Scopes are

Read "You don't know JavaScript" a book to make a note;Compiler principle:JS is a compiled language, similar to the traditional compilation language, the traditional compilation process is divided into three stages;1. Word segmentation/lexical

xTable of Contents [1] lexical [2] dynamic front wordsMost of the time, the main reason we are confused about scopes is whether we should make variable lookups in terms of the nesting order of function locations or in the order in which functions

  in Python, variable lookup follows the LGB principle of prioritizing a variable in a local scope (regional scope), failing to find it in the global scope, and finally attempting to build the scope again (build-in Scope), and throws an exception if

Recently in the study of JS, found themselves on the scope, scope chain, activity object of these concepts, understand is not very clear, so read the Big God Blog and other articles at the Tian Xiao Plan, benefit, write this essay is his own reading

Each programming language has a valid range of variables, beyond which the variable is invalidated, which is the scope of the variable. From a mathematical point of view, it is the domain of the independent variable.Scope is the accessible scope of

Each programming language has a valid range of variables, beyond which the variable is invalidated, which is the scope of the variable. From a mathematical point of view, it is the domain of the independent variable.Scope is the accessible scope of

From how the browser compiles the JS code.I've been thinking for a long time, when we give the code to the browser, how the browser transforms the code into a vivid Web page. JS engine before executing our code, what the browser did to our code, the

Analysis of JavaScript scope chain, execution context and closure, analysis of javascript Closure and scope chain are important concepts in JavaScript. I have read some documents over the past two days and summarized the relevant knowledge points as

Document directory Key points of the syntax analysis tree You should have written a similar code. In fact, what I want to express here is that sometimes a method definition is 108,000 different from that used. When the method is executed, what