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## Fusion
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### Instructions
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The objective of this exercise is to merge objects into a new object depending on the values type
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With this create a function called `fusion` that:
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- If the type is an array you must concat it
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```js
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fusion([1, 2], [3, 4]) // -> [1,2,3,4]
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```
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- If it is a string you must concatenate with a space
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```js
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fusion('Salem', 'alem') // -> 'Salem alem'
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```
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- If it is numbers you must added them
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```js
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fusion(4, 11) // -> 15
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```
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- In case of type mismatch you must replace it with the value of the second object
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```js
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fusion({ a: 'hello', b: [] }, { a: 4 })
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// -> { a: 4, b: [] }
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```
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- If it is an object you must fusion them recursively
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```js
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fusion({ a: 1, b: { c: 'Salem' } }, { a: 10, x: [], b: { c: 'alem' } })
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// -> { a: 11, x: [], b: { c: 'Salem alem' } }
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```
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