Abstract Not a Programming Language or Server Is a JavaScript Runtime Environment Terminologies JavaScript Runtime Environment A environment to run Javascript, independent of Browser Module Basically JavaScript Module The methods to be explicitly exposed, there are mainly 3 ways module.exports.<METHOD_NAME> = <METHOD_NAME> exports.<METHOD_NAME> = <METHOD_NAME> (Syntactic Sugar) exports.<METHOD_NAME> = <FUNCTION_DEFINITION> CommonJS Use the keyword const {...} = require() Loads the entire Module ES modules Use the keyword import {...} from ... Loads only the parts of a Module that are needed with the help of Tree Shaking (摇树)
