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25 lines
599 B
25 lines
599 B
4 years ago
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## Sign
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### Instructions
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Create the `sign` function that takes one number argument
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and return 1 if the number is positive, -1 if the number is negative
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and 0 if the number is exactly 0
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You must not just use `Math.sign`, make your own.
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Create the `sameSign` function that takes 2 numbers as arguments and check
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if they both have the same sign
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### Notions
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- https://nan-academy.github.io/js-training/examples/functions.js
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- https://nan-academy.github.io/js-training/examples/if-else.js
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- https://devdocs.io/javascript/global_objects/math/sign
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### Code provided
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```js
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Math.sign = undefined
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```
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