node. JS 1

1:node.js is a server-side language based on the Ecmasctipt development that provides many extension objects (without the front-end JS)

Front-end JS:

1.ES Native object: String,number,boolean,math,date,error,function,object,array,regexp

2.bom&dom

3. Custom Objects

node. JS:

1.ES Ost Object

2.node.js Built-in objects

3. A large number of third-party objects

4. Custom Objects

• . node. js can write standalone server applications without the need for other Web servers

The meaning of node. JS:

1. Faster execution efficiency than Php/jsp/java
2. In one language the same front-end development.

Full stack Engineer

Node. JS Features:

1. Single Thread logic processing
2. Non-blocking
3. asynchronous I/O processing
4. Event-driven programming

2.node.js Two modes of operation:

1. Interactive mode (for testing): Read user input, perform operations, output execution results, continue to the next loop; Execution Method : Input a line of JS statement, enter the execution
2. Script mode (for development): Write all the JS statements to be executed in a separate JS file, a one-time submission to node. JS processing, can not be the file;

node. JS 1