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30-seconds-of-code/snippets_archive/isSimilar.md
Angelos Chalaris c845c2bced Linted archive
2018-09-15 13:52:12 +03:00

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### isSimilar
Determines if the `pattern` matches with `str`.
Use `String.toLowerCase()` to convert both strings to lowercase, then loop through `str` and determine if it contains all characters of `pattern` and in the correct order.
Adapted from [here](https://github.com/forrestthewoods/lib_fts/blob/80f3f8c52db53428247e741b9efe2cde9667050c/code/fts_fuzzy_match.js#L18).
```js
const isSimilar = (pattern, str) =>
[...str].reduce(
(matchIndex, char) =>
char.toLowerCase() === (pattern[matchIndex] || '').toLowerCase()
? matchIndex + 1
: matchIndex,
0
) === pattern.length
? true
: false;
```
```js
isSimilar('rt','Rohit'); // true
isSimilar('tr','Rohit'); // false
```