Nodejs Learning Random Records

1.

Nodejs Top-level object: Global (no window in Nodejs)

2.

Nodejs a file is a module

Each module has its own scope

Variables declared by Var are only under the current module, not global

var a = n= +; 　　　　　　Console.log (a); = 100//Current module
Console.log (GLOBAL.A); = 200//Global

3.

__filename: The absolute path after the current file is parsed

Console.log (__filename); = = Absolute path After the current file is parsed

4. Module Loading System ( require () )

Require ('./2.js ');    /= Introduce files with 2.js name in the same directory

Nodejs Learning Random Records