# Day 2: Conditional Statements: Switch | 10 Days of JavaScript | HackerRank Solution

Hello coders, today we are going to solve Day 2: Conditional Statements: Switch HackerRank Solution which is a part of 10 Days of JavaScript Series.

Contents

## Objective

In this challenge, we learn about switch statements.

Complete the `getLetter(s)` function in the editor. It has one parameter: a string, s, consisting of lowercase English alphabetic letters (i.e., `a` through `z`). It must return `A``B``C`, or `D` depending on the following criteria:

• If the first character in string s is in the set {a, e, i, o, u}, then return `A`.
• If the first character in string s is in the set {b, c, d, f, g}, then return `B`.
• If the first character in string s is in the set {h, j, k, l, m}, then return `C`.
• If the first character in string s is in the set {n, p, q, r, s, t, v, w, x, y, z}, then return `D`.

Hint: You can get the letter at some index i in s using the syntax `s[i]` or `s.charAt(i)`.

## Function Description

Complete the getLetter function in the editor below.
getLetter has the following parameters:

• string s: a string

Returns

• string: a single letter determined as described above

## Input Format

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

## Constraints

• 1 <= |s| <= 100, where |s| is the length of s.
• String s contains lowercase English alphabetic letters (i.e., `a` through `z`) only.

Sample Input 0

``adfgt``

Sample Output 0

``A``

Explanation 0

The first character of string s = adfgt is `a`. Because the given criteria stipulate that we print `A` any time the first character is in {a, e, i, o, u}, we return `A` as our answer.

## Solution – Day 2: Conditional Statements: Switch

```'use strict';

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;

process.stdin.on('data', inputStdin => {
inputString += inputStdin;
});

process.stdin.on('end', _ => {
inputString = inputString.trim().split('\n').map(string => {
return string.trim();
});

main();
});

return inputString[currentLine++];
}

function getLetter(s) {
let letter;
// Write your code here
switch (s) {
case ('a' || 'e' || 'o' || 'i' || 'u'):
letter = 'A';
break;

case ('b' || 'c' || 'd' || 'f' || 'g'):
letter = 'B';
break;

case ('h' || 'j' || 'k' || 'l' || 'm'):
letter = 'C';
break;

case ('z' || 'n' || 'p' || 'q' || 'r' || 's' || 't' || 'v' || 'w' || 'x' || 'y'):
letter = 'D';

}

return letter;
}

function main() {
const s = readLine();

console.log(getLetter(s));
}```

Disclaimer: The above Problem (Conditional Statements: Switch) is generated by Hacker Rank but the Solution is provided by CodingBroz. This tutorial is only for Educational and Learning Purpose.