ES6 - Default Parameters| Learn ES6 Tutorials

This tutorial talks about object literal syntax in ES6/ES2015

Before ES6, Object literals are defined with key and value pairs

function addEmployee=(id,name){
    return {
        id:id,
        name:name
    }
}

console.log(addEmployee(1,"Ram")) // {id:1,name:"ram"}

This function passed with id, name values and return an object. Here object keys needs to pass and redundent to pass.

with ES6, These are ignored.

ES6 Object Literal Shorthand

No need of passing object keys to return.

function addEmployee=(id,name){
    return {
        id,
        name
    }
}

console.log(addEmployee(1,"Ram")) // {id:1,name:"ram"}