Combine arrays, a very useful data structure, with the power of functions, to do awesome things.
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We’ve seen arrays, and functions.
Now imagine combining the two.
That’s what happens with some very useful built-in methods you can use on any array:
map()filter()- … and many others
I think it’s super essential that you know them inside out in JavaScript.
Lessons in this unit:
| 0: | ▶︎ Introduction |
| 1: | map() |
| 2: | filter() |
| 3: | reduce() |
| 4: | sort() |
| 5: | find() and findIndex() |
| 6: | forEach() |