This course uses
const to declare variables and constants instead of the
var keyword. If these are new to you, check out the Defining Variables with let and const workshop.
If you're new to ES2015's arrow functions, they provide a more concise syntax for writing functions. Introducing Arrow Function Syntax is a short workshop (8 min) that will show you everything you'll need for this course.
For more advanced use cases, take a look at Arrow Functions – Introducing ES2015.
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