January 28, 2024 - Here are 15 coding interview questions related to strings in JavaScript, along with sample solutions: Reverse a String: Write a function to reverse a string in-place. function reverseString(str) { return str.split('').reverse().join(''); } ...

November 10, 2019 - Check 👉 179 JavaScript Interview Questions ... The best way to find whether an object is instance of a particular class or not using toString method from Object.prototype ... One of the best use cases of type checking of an object is when we do method overloading in JavaScript. For understanding this let say we have a method called greet which take one single string and also a list of string, so making our greet method workable in both situation we need to know what kind of parameter is being passed, is it single value or list of value?

March 18, 2024 - JavaScript coding Interview Questions and Answers — Part 1 Write a JavaScript program to find the maximum number in an array. Write a JavaScript function to check if a given string is a palindrome …

September 18, 2025 - String-related problems often assess a candidate's understanding of concepts like pattern matching, manipulation, and efficient algorithm design. Here is the collection of frequently asked interview questions on Strings.

August 5, 2025 - The countChar() function counts how many times a specified character (char) appears in a string (str). It splits the string into an array using the character, then returns the length of the array (length-1), which gives the count of the character.

... Some of the common JavaScript coding interview questions typically cover these topics: checking for palindrome, finding missing/largest numbers, object manipulation, removing duplicates, merging, etc.

This resource offers a total of 315 JavaScript String problems for practice.

July 27, 2022 - I got lucky and had a technical interview with recruiting company that was recruiting for a local company hiring for PHP developer which I failed, I was lucky to make it to a technical interview normally I dont get them. The problem sets in this [backend interview] (ive included my solutions)(https://github.com/KravMaguy/Technical-interview/tree/master/Backend interview) were all easy except the last one, which I could not do: for the example ignore the part about the padding with the d...

June 18, 2023 - The Technical Interview Guide to String Manipulation JavaScript string manipulation for interview prep and daily coding A string is a sequence of characters. It is either a constant or a variable. It …

May 17, 2026 - JavaScript Algorithms and Data Structures Masterclass by Colt Steele for JavaScript programmers · Mastering Data Structures & Algorithms using C and C++ for those who are good at C/C++ 5. Grokking the Coding Interview: Patterns for Coding Questions Forget about the hundreds of Leetcode problems. Master these 15 underlying patterns in interview questions, and you’ll be able to tackle anything you face in an interview · A good thing about the string data structure is that if you know the array data structure, you can easily solve string-based problems because strings are nothing but a character array.

June 13, 2020 - The problem can be stated along the following lines: given a string, return true if the string is a palindrome and false if it isn’t. Include spaces and punctuation in deciding if the string is a palindrome.

js coding interview questions - Free download as Word Doc (.doc), PDF File (.pdf), Text File (.txt) or read online for free. The document contains 20 code snippets demonstrating various JavaScript array and string methods and functions. The codes provide solutions to problems like removing duplicate characters, checking for palindromes, finding longest words, and more.

February 16, 2026 - JavaScript Algorithms and Data Structures Masterclass by Colt Steele for JavaScript programmers · Mastering Data Structures & Algorithms using C and C++ for those who are good at C/C++ 5. Grokking the Coding Interview: Patterns for Coding Questions Forget about the hundreds of Leetcode problems. Master these 15 underlying patterns to interview questions, and you’ll be able to tackle anything you face on the interview ... A good thing about the string data structure is that if you know the array data structure, you can easily solve string-based problems because strings are nothing but a character array.

The “0” in the above code simply defines the initial value for the accumulator variable. A simple isPalindrome function could take a given string, reverse it, and compare it to the original. ... Since there is no direct way to reverse a string in JavaScript, what we’re doing is turning the string into an array of characters and reversing that.

5 days ago - Inside myFunction - Type of petName: string Inside myFunction - petName: Rocky Outside myFunction - Type of petName: string Outside myFunction - petName: Rocky · It is difficult to debug and test the code that relies on global variables.

Mostly Asked String Interview Coding Questions | String Programs ( Problems ) for Practice 👩🏻‍💻 · String Questions · Practice Link · Code · Video Solutions · HINT · Check Palindrome String(reverse string is same) Solve · Code · 2 pointer ·

This article presents the top 90 most common JavaScript coding interview questions with their answers for beginner, intermediate and advanced levels. Data types, variables and scoping, array, string manipulation, OOP (Object Oriented Programming), error handling, control flow, DOM manipulation, and asynchronous programming are basic questions in JavaScript.