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A JavaScript array is a list-like object. You can use arrays to store any kind of data in a sequence, like a list.
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Arrays are one of the most useful data
types you have as a JavaScript developer.
0:00
Arrays are the best way to group
similar data together in a sequence,
0:01
such as a list of customers,
photos, dates, or
0:05
even coordinates indicating
a precise spot on a screen.
0:09
To use arrays effectively,
0:13
you need a way of looking through
them to see the data they hold.
0:14
This action of looking through
arrays is called iteration, and
0:18
JavaScript provides many methods for
iterating over an array.
0:22
For example, you might wanna
transform an array's elements, say,
0:26
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