The method of loading ES6 module Syntax

This article mainly introduces the relevant knowledge of ES6 module grammar loading method, the content is detailed and easy to understand, the operation is simple and fast, and it has a certain reference value. I believe you will gain something after reading this ES6 module grammar loading method article. Let's take a look at it.

Export: to expose is to expose the interface

Import: introduce, literally, introduce an interface

Export {}

Exportfunctiondemo () {}

Exportvardemo1

The two export above can be abbreviated as

Functiondemo () {}

Vardemo1

Export {demo,demo1}

Import {}

Accordingly, of course, there is import.

Import {demo,demo1} from..path

Of course, you can also write another way to write import*asnamefrom..path and then quote it like name.demo ().

Exportdefault

And there is exportdefault.

You can only use exportdefault once in a file.

Exportdefaultfunctiondemo () {}

And then when import

Importdefault

Importname (the name is chosen at random) from..path

See this? no curly braces.

But

Precisely because the exportdefault command actually outputs a variable called default, it cannot be followed by a variable declaration statement.

So exportdefaultvara=1 will report an error if he writes like this!

Vara=1

Exportdefatulta

This is also possible.

A module of export*from

This export* ignores the interface of the output of the module's exportdefault

In that case, does a certain module of import*from fail to import the exportdefault interface defined by the module?

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