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## Unbreakable
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### Instructions
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Implement 2 functions:
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- `split` that works like the string method `.split` but take the string as
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it's first argument.
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- `join` that works like the string method `.join` but take the array as
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it's first argument.
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### Notions
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- https://devdocs.io/javascript/global_objects/array/join
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- https://devdocs.io/javascript/global_objects/string/split
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### Code provided
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```js
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String.prototype.split = undefined
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String.prototype.match = undefined
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RegExp.prototype.exec = undefined
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Array.prototype.join = undefined
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```
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