Day 2: Conditional Statements: Switch in Javascript | 10 Days Of JavaScript Solutions | HackerRank Programming Solutions [💯Correct]

Hello Programmers/Coders, Today we are going to share solutions of Programming problems of HackerRank, 10 Days Of JavaScript. At Each Problem with Successful submission with all Test Cases Passed, you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.

In this post, you will find the solution for Day 2: Conditional Statements: Switch in JavaScript-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.

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Introduction To JavaScript

JavaScript is a lightweight, cross-platform, and interpreted scripting language. It is well-known for the development of web pages, many non-browser environments also use it. JavaScript can be used for Client-side developments as well as Server-side developments. JavaScript contains a standard library of objects, like Array, Date, and Math, and a core set of language elements like operators, control structures, and statements.

Advantages of JavaScript

The merits of using JavaScript are −

  • Less server interaction âˆ’ You can validate user input before sending the page off to the server. This saves server traffic, which means less load on your server.
  • Immediate feedback to the visitors âˆ’ They don’t have to wait for a page reload to see if they have forgotten to enter something.
  • Increased interactivity âˆ’ You can create interfaces that react when the user hovers over them with a mouse or activates them via the keyboard.
  • Richer interfaces âˆ’ You can use JavaScript to include such items as drag-and-drop components and sliders to give a Rich Interface to your site visitors.

Link for the ProblemDay 2: Conditional Statements: Switch – Hacker Rank Solution

Day 2: Conditional Statements: Switch– Hacker Rank Solution



In this challenge, we learn about switch statements. Check out the attached tutorial for more details.


image 17

Function Description

Complete the getLetter function in the editor below.

getLetter has the following parameters:

  • string s: a string


  • string: a single letter determined as described above

Input Format

Stub code in the editor reads a single string denoting  from stdin.


image 16

Sample Input 0


Sample Output 0


Explanation 0

image 15
Day 2: Conditional Statements: Switch – Hacker Rank Solution
function getLetter(s) {
  let letter;
  // Write your code here
  switch (true) {
    case "aeiou".includes(s[0]):
      letter = "A";
    case "bcdefg".includes(s[0]):
      letter = "B";
    case "hijklm".includes(s[0]):
      letter = "C";
    case "nopqrstuvwxyz".includes(s[0]):
      letter = "D";
  return letter;

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