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54 lines
983 B
54 lines
983 B
4 years ago
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## Swapy
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Like we did with `Objects`, we can modify our arrays.
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### replacing an `Array` value
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Let's look at an example of code:
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```js
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let weekDays = [
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'Monday',
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'Tuesday',
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'Wednesday',
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'Thursday',
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'Friday',
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'Saturday',
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'Sunday',
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]
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// Let's say I don't want Monday but a Second Sunday
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weekDays[0] = 'Second Sunday'
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```
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In this example, we select the element at index `0` (with `weekDays[0]`) and
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then assign it using the `=` (assign operator) the value `'Second Sunday'`
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Now my array look like this:
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```js
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;[
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'Second Sunday',
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'Tuesday',
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'Wednesday',
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'Thursday',
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'Friday',
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'Saturday',
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'Sunday',
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]
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```
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### Instructions
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- You must replace the third element of the provided `replaceMe` array by the
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string `'great'`
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- You must swap the first and second element of the provided `swapMe` array.
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Example:
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```js
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['pif','paf','pom'] -> ['paf','pif','pom'] // last element is untouched
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```
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> You must modify the `swapMe` array, not create a new one !
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