Valid Anagram
Explore the concept of valid anagrams by learning how to track character frequencies between two strings. Understand how to assess and implement a solution that checks if rearranging letters can form an anagram, using JavaScript coding techniques to solve this common interview problem.
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Statement
Given two strings, str1 and str2, check whether str2 is an anagram of str1.
An anagram is a word or phrase created by rearranging the letters of another word or phrase while utilizing each of the original letters exactly once.
Constraints:
-
str1.length,str2.length -
str1andstr2consist of only lowercase English letters.
Examples
Understand the problem
Let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps you check if you’re solving the correct problem:
Valid Anagram
What’s the correct output for the following inputs?
str1 = “heart”
str2 = “earth”
TRUE
FALSE
Figure it out!
We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding of how to solve this problem.
Try it yourself
Implement your solution in the following coding playground.
function isAnagram(str1, str2) {// Replace this placeholder return statement with your codereturn false;}export {isAnagram}