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Angelos Chalaris
2020-09-15 16:28:04 +03:00
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snippets/hammingDistance.md
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@ -5,8 +5,8 @@ tags: math,regexp,intermediate
Calculates the Hamming distance between two values.
Use the XOR operator (`^`) to find the bit difference between the two numbers, convert to a binary string using `toString(2)`.
Count and return the number of `1`s in the string, using `match(/1/g)`.
- Use the XOR operator (`^`) to find the bit difference between the two numbers, convert to a binary string using `toString(2)`.
- Count and return the number of `1`s in the string, using `match(/1/g)`.
```js
const hammingDistance = (num1, num2) => ((num1 ^ num2).toString(2).match(/1/g) || '').length;