13 lines
307 B
Markdown
13 lines
307 B
Markdown
### gcdOfArray
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It finds the GCD of all the numbers in an array by using `array.reduce` and the fact that `gcd(a,b,c) = gcd(gcd(a,b),c)`
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```js
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const gcdOfArray = arr =>
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{
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const gcd = (x, y) => !y ? x : gcd(y, x % y);
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arr.reduce((a,b) => gcd(a,b))
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}
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// functionName(sampleInput) -> sampleOutput
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```
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