export default node js code example

Example 1: js import and export

// helloworld.js

export function helloWorld() {
	return 'Hello World!';
}

// main.js

import helloWorld from './helloworld.js';

console.log(helloWorld());

Example 2: js class export

export class ClassName {...}

Example 3: export function javascript

// module "mon-module.js"
export default function cube(x) {
  return x * x * x;
}

Example 4: javascript export default

export default const array = [1, 2, 3];
export default let array = [1, 2, 3];
export default var array = [1, 2, 3];
export default const variable = 'value';
export default let variable = 'value';
export default var variable = 'value';
export default const variable;
export default let variable;
export default var variable;
export default function functionName () {
  // ...
}
export default class ClassName {
  // ...
}
// Before you use export default: You can't have 2 or more export default's.