How to instantiate a JS class in a document?

Question

JavaScript

Hello.
I use:

"@babel/preset-env": "^7.6.3",
    "babel-loader": "^8.0.6",
    "webpack": "^4.41.2",
    "webpack-cli": "^3.3.9"

There is a class file:

class MyClass {
   constructor(){ this.init()}
   init () {}
}

How can I create an instance of this class in an html document?

Answer 1

Webpack creates an isolated scope for each module. You need to manually put your class into the global object:

class MyClass {
   constructor(){ this.init()}
   init () {}
}

// например вот так:
window.MyClass = MyClass;

Answer 2

Most likely your class and instantiation are in different scopes.
Because the syntax is correct