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54 lines (40 loc) · 1.16 KB
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/* eslint-disable */
// Refactor the following code to use the specified ES6 features.
// There are no automated tests.
// To make sure the code still works you can run this file using `node es6.js` from inside `/src`.
//----------------
// const, =>, default parameters, arrow functions default return statements using ()
const food = 'pineapple';
function isMyFavoriteFood(food = 'thousand-year-old egg') {
return food === 'thousand-year-old egg';
}
const isThisMyFavorite = isMyFavoriteFood(food);
//----------------
//const, class, template literals, enhanced object literals (foo: foo, -> foo,)
class User {
constructor(options){
this.username = options.username;
this.password = options.password;
}
sayHi(){
return `${this.username} says hello!`;
}
}
const me = new User({
username: username,
password: password,
});
// ----------------
// let, const, =>, ... (spread operator)
function addArgs() {
let sum = 0;
for(let arument of arguments){
sum+=argument;
}
return sum;
}
function argsToCb(cb, ...args) {
return cb.apply(null, ...args);
}
var result = argsToCb(addArgs, 1, 2, 3, 4, 5); //result should be 15
/* eslint-enable */