Day 2: Conditional Statements: Switch

 Objective

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

Task

Complete the getLetter(s) function in the editor. It has one parameter: a string, , 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  is in the set , then return A.
• If the first character in string  is in the set , then return B.
• If the first character in string  is in the set , then return C.
• If the first character in string  is in the set , then return D.

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

Input Format

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

Constraints

• , where  is the length of .
• String  contains lowercase English alphabetic letters (i.e., a through z) only.

Output Format

Return either A, B, C, or D according to the criteria given above.

Sample Input 0

adfgt

Sample Output 0

A

Explanation 0

The first character of string  is a. Because the given criteria stipulate that we print A any time the first character is in , we return A as our answer.

Solution

function getLetter(s) {
    let letter;
    // Write your code here
    switch(s[0]){
        case 'a': letter="A";break;
        case 'e': letter="A"; break;
        case 'i': letter="A";break;
        case 'o': letter="A";break;
        case 'u': letter="A";break;
        case 'b': letter="B";break;
        case 'c': letter="B";break;
        case 'd': letter="B";break;
        case 'f':letter="B";break;
        case 'g': letter="B";break;
        case 'h':letter="C";break;
        case 'j':letter="C";break;
        case 'k':letter="C";break;
        case 'l':letter="C";break;
        case 'm':letter="C";break;
        case 'n':letter="D";break;
        case 'p':letter="D";break;
        case 'q':letter="D";break;
        case 'r':letter="D";break;
        case 's':letter="D";break;
        case 't':letter="D";break;
        case 'v':letter="D";break;
        case 'w':letter="D";break;
        case 'x':letter="D";break;
        case 'y':letter="D";break;
        case 'z':letter="D";break;
   }
    return letter;
}