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JavaScript Strings Coding Practice Problems
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JavaScript Strings Coding Practice Problems

Last Updated : 23 Apr, 2025
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Strings are one of the most essential data types in JavaScript, used for handling and manipulating text-based data. This curated list of JavaScript string practice problems covers everything master JavaScript Strings. Whether you're a beginner or an experienced developer, these problems will enhance your JavaScript string manipulation skills!

Strings Practice Problems

Easy

  • Length of String
  • First Occurrence
  • Reverse String
  • Pangram Checking
  • Count Words in String
  • Slice The String
  • Find Pattern
  • Print Alphabets
  • Reverse digits
  • First Repeated Character
  • Reverse Words
  • Roman Number to Integer
  • Remove Duplicates
  • Longest Common Prefix
  • Uncommon characters
  • Minimum indexed character
  • License Key Formatting
  • Panagram Checking

Medium

  • Anagram
  • Find one extra character
  • Substring
  • GetLine 1
  • Palindrome String
  • Power Set
  • Permutations of a String
  • Next Permutation
  • String Rotated by 2 Places
  • Longest substring with distinct characters
  • Search Pattern (Z-algorithm)
  • Find largest word in dictionary
  • Validate an IP Address
  • Equal 0, 1 and 2
  • Add Binary Strings
  • Sum of two large numbers
  • Multiply two strings
  • Look and Say Pattern
  • Minimum Repeating Substring
  • Excel Sheet | Part - 1
  • Form a palindrome
  • Next higher palindromic number
  • Longest Palindromic Subsequence
  • Length of the longest substring
  • Substrings of length k with k-1 distinct elements
  • Substrings with K Distinct
  • Interleaved Strings
  • Print Anagrams Together
  • Rank The Permutations
  • Minimum Deletions

Hard

  • Implement Atoi
  • Search Pattern (Rabin-Karp Algorithm)
  • Longest Prefix Suffix
  • Smallest window containing all characters
  • Restrictive Candy Crush
  • Shortest Common Supersequence
  • Number of distinct words with K maximum contiguous vowels
  • Longest substring to form a Palindrome
  • Longest valid Parentheses
  • Distinct palindromic substrings
  • Find the N-th character
  • Longest Prefix Suffix
  • Longest Substring with K Uniques
  • k-Anagram
  • Number of distinct subsequences

Strings Quiz

  • String

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JavaScript Strings Coding Practice Problems

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Article Tags :
  • JavaScript
  • Web Technologies
  • JavaScript-DSA
  • JavaScript-Questions
  • JavaScript-Quiz

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