Arrow Function => in ES6

The let keyword in ES6

Default Values for Function Parameters in ES6

const Declarations in es6 (ES2015)

Shorthand Properties in ES6

Object Enhancements in ES6

Using the ES6 spread operator

Use Template Literals in ES6

Destructuring Assignment in ES6

ES6 Modules (ES2015) - Import and Export

Promises with ES6

ES6 (ES2015) - Generators

Maps and WeakMaps with ES6

ES6 Parameter Object Destructuring with Required Values 

ES6 Rest Parameters

Learn ES6 (ECMAScript 2015)

Building on the ES6 Shorthand Properties lesson, John shows the other new Object Enhancements in ES6 that will help you write less code and easily create complex Objects.

[00:00] ES6 comes with some object enhancements. If I want to create a car with that color and speed, I can just say "color, speed" and then log out car.color and car.speed. When I run this, you can see I get red and 10. 

[00:18] That's because if you declare a property with the exact same name as something, it'll treat it just as if you did "color:color" and "speed:speed." This is the ES5 way, and this is the ES6 way. 

[00:32] This even works for functions. If I create a function called "go" and say "vroom," I can simply add another property here, call it "go," and then say, "car.go." Then I'll run this. You can see it says, "vroom."

[00:50] Another cool thing...I'm going to format this just a little bit, put these on new lines...is that instead of using the function keyword, I can actually cut and paste this here. Then I'll just delete that. 

[01:04] This is valid syntax for declaring a function on an object. If I save and run again, you'll see I get the same result. This is the ES6 way, and that's the ES5 way. It's basically a shorthand that saves you some typing.

[01:22] The last fun trick to show you is that if you type something like this, you can actually have a computed property where it'll evaluate this. This is pretty much just like if you were to do car["go"] like that, but now you're doing it inline inside of an object declaration. 

[01:43] This will still work when I run it. I ran it and got vroom still. I can actually extract this go. I'll cut that out, say "var drive," paste it in there. Then we can put drive in here, hit save, run it. We still get vroom.

[02:01] You could do any sort of string concatenation or evaluation in there to generate some sort of string, which would evaluate into the name of something that you could then call later on.

Course

Learn ES6 (ECMAScript 2015)

Object Enhancements in ES6

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