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node.jsconstantsbraces

I didn't understand const{} in Node

const { exec } = require('child_process');

I'm still new to node.js. I would like to know what's the purpose of the curly braces near const, is it like an angular/typescript way to fetch the object from the module?

Is there any ES6 or whatever new syntax that I should be aware of? like: 

const[foo] = , or const(foo) =
Solution

  • Yes, this is a part of ES6. They are called named exports and this accessing method is called "destructuring".

    So if you have a module with this contents:

    export const foo = Math.sqrt(2);

    You can use foo by doing any of the below:

    import foo from "module";

    import { foo } from "module";

    import * as mod from "module"; console.log(mod.foo)