387 First Unique Character in a String LeetCode (Google Interview Question) JavaScript

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387 First Unique Character in a String LeetCode (Google Interview Question) JavaScript

"Given a string s, find the first non-repeating character in it and return its index. If it does not exist, return -1."

Final code:

Gear I use:
  1. dev alex
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thanks please upload more such content, waiting for your new video

vishalghag
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Keep up the good work brother lots of love from India

rohitsingh-xjey