Master getFrequency Function | Count Element Frequencies in Java

Learn how to build and use the getFrequency function in JavaScript to count the frequency of elements in arrays and strings — a must-know technique for solving DSA problems like anagrams, duplicates, and more!

In this video, you'll learn:

What the frequency counter pattern is

How to write the getFrequency function step-by-step

Real-world examples from coding interviews

Tips for optimizing time and space complexity