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README.md |
README.md
The Four Seasons
Sometimes we don't need a key, we just want a list of things, JS has a special type for that
Arrays
Let's see an example of an Array
:
let numberArray = [
10, // <- no keys !
20,
30,
40,
]
// or for brievety, we often write them on a single line like so:
let numberArray = [10, 20, 30, 40]
Arrays
are like objects but use []
square bracket delimiters and only
specify values.
The key
of an element of an array is its position, starting from 0
. We call
that its index
So our numberArray
is roughly equivalent to writing this object:
let numberObject = {
0: 10,
1: 20,
2: 30,
3: 40,
}
Instructions
You must declare a variable seasons
that contains 4 strings, one for each
seasons.
Starting with Spring, like the work of the Maestro Vivaldi.