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48 lines
929 B
48 lines
929 B
4 years ago
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## The Four Seasons
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Sometimes we don't need a key, we just want a list of things, JS has a special
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type for that
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### Arrays
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Let's see an example of an `Array`:
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```js
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let numberArray = [
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10, // <- no keys !
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20,
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30,
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40,
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]
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// or for brievety, we often write them on a single line like so:
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let numberArray = [10, 20, 30, 40]
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```
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`Arrays` are like objects but use `[]` square bracket delimiters and only
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specify values.
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The `key` of an element of an array is its position, starting from `0`. We call
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that its `index`
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So our `numberArray` is **roughly equivalent** to writing this object:
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```js
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let numberObject = {
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0: 10,
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1: 20,
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2: 30,
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3: 40,
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}
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```
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### Instructions
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You must declare a variable `seasons` that contains 4 strings, one for each
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seasons.
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Starting with Spring, like the work of the Maestro Vivaldi.
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> BGM:
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> [Antonio Vivaldi - Le Quattro Stagioni](https://www.youtube.com/watch?v=b4YNYf39mcg)
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