What method is used to export modules in es6

The method used to export modules in es6: 1. Export the default module. A module file can only have one default module. The syntax is "export default members that need to be exported"; 2. Export ordinary modules, one module file. There can be multiple ordinary modules, and the syntax is "export members exported on demand".

The operating environment of this tutorial: Windows 10 system, ECMAScript version 6.0, Dell G3 computer.

What method is used to export modules in es6

Default export

A module file can only have one default module, and there can be multiple Ordinary module

Statement: export default members that need to be exported

const n1 = 10
const n2 = 20
 
const show = () => {
  console.log('hello')
}
 
export default {
  n1,
  show
}

Default import

Statement: import variable name from 'module identification Symbol '

import m1 from './1.默认导出.js'
console.log(m1)

Note:

In each module, only one export default is allowed, otherwise an error will be reported!

The default receiving name during import can be any name, as long as it is a legal member name

Export on demand

You can put any data Types are exported as modules

Syntax: Syntax for export on demand: export members exported on demand

export const n1 = 10
 
export const n2 = 20

Imported on demand

Imported on demand Syntax: import { m1 } from 'module identifier'

import { n1 } from './3.按需导出.js'
 
console.log(n1)

Notes on on-demand import and on-demand export:

• Can be used multiple times in each module Export on demand

• The member name imported on demand must be consistent with the name exported on demand

• When importing on demand, you can use as Rename keywords

• On-demand import can be used together with the default import

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