Join Eve Porcello for an in-depth discussion in this video Enhancing object literals, part of Learning ECMAScript 6.
- ES6 enhancements give us ways of shortening…and simplifying object literals.…Let's take a look at an example of an ES5 object.…On line six, I'm going to create a variable called cat.…And our cat object is going to contain several methods.…The first of these methods is meow.…The second of these methods is purr.…And the third of these methods is snore.…
Great, so now that I've done this,…I want to use a console.log message…to have our function log a quick message for us.…Now we're going to use Array.join…and then we need to pass in some parameters here…to our array constructor…and our join method.…So what I'm going to pass in here to array is times.…Array is going to construct the array,…and the number that I pass in as a parameter…will be the number of positions in that array.…
So here we're going to use times…and we're also going to pass in times to the function.…Now join is going to take the elements of the array…and join them together as a string.…So the value that I pass into the join method…will be the character or the word…
- What is ECMAScript?
- Transpiling ECMAScript with Babel and Babel-node
- Using the let and const keywords
- Creating strings with template strings
- Enhancing object literals
- Working with ES6 classes and class inheritance
Skill Level Beginner
Q: The Babel API is out of date. How do I proceed with the course?
A: We are updating the course. In the meantime, you can install the babel-cli package and then install the presets that you need to follow along with the tutorials.