javascript replace vowel 1

javascript replace vowel

function vowel2index(str) {
   return str.replace(/[aeiou]/ig, (m, i) => i + 1);
}

Here is what the above code is Doing:
1. The function takes a string as an argument.
2. The string is then passed to the replace() method.
3. The replace() method takes two arguments:
a. A regular expression that matches all vowels.
b. A callback function that returns the index of the vowel.
4. The regular expression uses the i flag to ignore the case of the vowels.
5. The callback function uses the i parameter to get the index of the vowel.
6. The index is then incremented by 1 and returned.

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