JavaScript Strings Coding Practice Problems Last Updated : 23 Apr, 2025 Comments Improve Suggest changes Like Article Like Report 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 ProblemsEasyLength of StringFirst OccurrenceReverse StringPangram CheckingCount Words in StringSlice The StringFind PatternPrint AlphabetsReverse digitsFirst Repeated CharacterReverse WordsRoman Number to IntegerRemove DuplicatesLongest Common PrefixUncommon charactersMinimum indexed characterLicense Key FormattingPanagram CheckingMediumAnagramFind one extra characterSubstringGetLine 1Palindrome StringPower SetPermutations of a StringNext PermutationString Rotated by 2 PlacesLongest substring with distinct charactersSearch Pattern (Z-algorithm)Find largest word in dictionaryValidate an IP AddressEqual 0, 1 and 2Add Binary StringsSum of two large numbersMultiply two stringsLook and Say PatternMinimum Repeating SubstringExcel Sheet | Part - 1Form a palindromeNext higher palindromic numberLongest Palindromic SubsequenceLength of the longest substringSubstrings of length k with k-1 distinct elementsSubstrings with K DistinctInterleaved StringsPrint Anagrams TogetherRank The PermutationsMinimum DeletionsHardImplement AtoiSearch Pattern (Rabin-Karp Algorithm)Longest Prefix SuffixSmallest window containing all charactersRestrictive Candy CrushShortest Common SupersequenceNumber of distinct words with K maximum contiguous vowelsLongest substring to form a PalindromeLongest valid ParenthesesDistinct palindromic substringsFind the N-th characterLongest Prefix SuffixLongest Substring with K Uniquesk-AnagramNumber of distinct subsequencesStrings QuizString Comment More infoAdvertise with us Next Article JavaScript Strings Coding Practice Problems S souravsharma098 Follow Improve Article Tags : JavaScript Web Technologies JavaScript-DSA JavaScript-Questions JavaScript-Quiz +1 More Similar Reads JavaScript String Exercise JavaScript string is a primitive data type and is used for storing and manipulating a sequence of characters. It can contain zero or more characters within single or double quotes. This article contains a wide collection of JavaScript Programming examples based on String. JavaScriptlet s = "Geeksfor 7 min read JavaScript String Interview Questions and Answers JavaScript (JS) is the world's most popular lightweight programming language, created by Brendan Eich in 1995. It is a must-have skill for web development, mobile apps, web servers, and more. Whether you aim to be a front-end or back-end developer, mastering JavaScript is crucial for landing top job 14 min read Java Strings Coding Practice Problems Strings are a fundamental part of Java programming, used for handling and manipulating textual data efficiently. This collection of Java string practice problems covers key operations such as finding string length, slicing, case conversion, palindrome checking, anagram detection, and pattern matchin 2 min read Java String Manipulation: Best Practices For Clean Code In Java, a string is an object that represents a sequence of characters. It is a widely used data type for storing and manipulating textual data. The String class in Java is provided as a part of the Java standard library and offers various methods to perform operations on strings. Strings are funda 7 min read Java String Exercise String in Java are the objects which can store characters of values in Java, it act the same as an array of characters in Java. Java String is one of the most important topics in Java programming. It is widely used to manipulate and process textual data. In this article, we will learn about Java Str 5 min read Java String Programs A String in Java is a sequence of characters that can be used to store and manipulate text data and It is basically an array of characters that are stored in a sequence of memory locations. All the strings in Java are immutable in nature, i.e. once the string is created we can't change it. This arti 4 min read String Class in Java A string is a sequence of characters. In Java, objects of the String class are immutable, which means they cannot be changed once created. In this article, we are going to learn about the String class in Java.Example of String Class in Java:Java// Java Program to Create a String import java.io.*; cl 7 min read Java Strings In Java, a String is the type of object that can store a sequence of characters enclosed by double quotes, and every character is stored in 16 bits, i.e., using UTF 16-bit encoding. A string acts the same as an array of characters. Java provides a robust and flexible API for handling strings, allowi 9 min read Commonly Asked Data Structure Interview Questions on Strings Strings are essential data structures used to represent sequences of characters and are frequently encountered in coding interviews. Questions often focus on string manipulation techniques such as searching, concatenation, reversal, and substring extraction. Understanding key algorithms like pattern 4 min read Java.lang.String class in Java | Set 2 Java.lang.String class in Java | Set 1 In this article we would be discussing different constructor and methods provided by java.lang.String. Strings in java are immutable. Now lets discuss some of the methods provided by String class. Methods: public int codePointAt(int index) - It takes as paramet 5 min read Like