Top JavaScript Coding Interview Questions And Answers (2023)

  1. Write a code to display which character is coming how many times in a given string ?
  2. Write a function to check whether a string is a palindrome or not with time complexity of the code ?
  3. Given an array containing some numbers write a code to that will find out the missing number in the array's range ?
  4. Write a code to reverse all the words of a given string. For example :
    Input : “how are uoy”
    Output : “Woh era you”
  5. How to segregate 0s and 1s in an array in Javascript ?
  6. Write a function to check if an anagram of a string is palindrome or not ?
  7. Write a code to check if two strings are anagram of each other ?
  8. Write a code to group items of array by category ?
  9. How to get the maximum count of consecutive 1's in an array ?
  10. How do you write a factorial code in JavaScript ?
  11. Given an integer array, find the subarray with the largest sum, and return its sum ?
  12. How to merge two sorted arrays in JavaScript ?
  13. How do you check if a value is a prime number ?
  14. How to reverse a string in JavaScript using recursion ?


For more questions and answers visit our website at  frontend interview questions


Comments

Post a Comment

Popular posts from this blog

JavaScript Developer Interview Questions for Freshers

  JavaScript Developer Interview Questions for Freshers What are the data types in JavaScript ? What is an object in JavaScript ? In how many ways we can define an object in JavaScript ? How to define a class in JavaScript ? What is defineProperty() method of javascript Object ? What is scope in JavaScript ? Explain variable hoisting ? Explain closures in javascript ? Difference between null and undefined ? Difference between == and === ? What are the new features in ES6 , which were not there in previous JavaScript version ? Explain time complexity ? What is space complexity ? What will be the output of the below code: let obj ={ a: 10, vir : function(){ x(); console.log(this.a); function x(){ console.log(this.a) } } } obj.vir(); What will be the output of the below code for (var i= 0; i < 5; i++){ setTimeout(() => console.log(i)); } What will be the output of the below code :- var a = 90; doit(); function doit(){ console.log(a); var a = 10; } Explain c
Read more

Frontend Interview Questions External Links

CSS Interview Questions [Top 30]  -Medium Top 30 CSS Interview Questions - Reddit Front End Interview Questions [Top 250+] - Linkedin Angular Interview Questions [Top 90] - Medium JavaScript Interview Questions [Top 100] - Medium JavaScript Interview Questions [Top 100] - Linkedin Frontend Interview Question -Medium HTML Interview Question [Top 25] -Linkedin HTML Interview Question [Top 25] - Reddit    HTML Interview Question [Top 25] -  Medium   Frontend Interview Questions For Freshers - Reddit Frontend Interview Questions For Freshers - Medium Frontend Interview Questions For 3 Years Of Experience- Medium Frontend Interview Questions For 5 Years Of Experience - Linkedin Frontend Interview Questions For 5 Years Of Experience - Medium HTML Interview Questions For Freshers - Reddit HTML Interview Questions For Freshers - Medium HTML Interview Questions For Freshers - Linkedin HTML Interview Questions For 3 Years Of Experience - Medium HTML Interview Questions For 3 Years Of Experience
Read more

JavaScript Interview Questions For 3 Years Of Experience

  What is Callback hell ? Explain promises in JavaScript ? Difference between observable and a promise How to create custom events in JavaScript ? Difference between prototype and _proto_ ? Explain prototypal inheritance in JavaScript ? Difference between for in and for of loop ? Difference between get and post methods  ? Difference between post and put methods ? When we pass an object to a function are they passed by reference or by value ? What are the design patterns in JavaScript ? What do u understand by the terms mutable and immutable in JavaScript ? What is Async and Await in JavaScript ? Is array a data type ? How can we overwrite any JavaScript inbuilt property (like array.push()) Explain exception handling in JavaScript ? Difference between a transpiler and a compiler ? How to apply conditional breakpoints in chrome browser debugging tool ? How to check if a number is an integer without using math function and without converting number into string or array ? Use of JavaScrip
Read more