Day2 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, 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).

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.

Output Format

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

Sample Input 0

1

adfgt

Sample Output 0

1

AA

Explanation

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.

Solution1

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function getLetter(s) {
    const firstCharacter = s.slice(0, 1);
    let letter;
    // Write your code here
    switch (firstCharacter) {
        case 'a':
        case 'e':
        case 'i':
        case 'o':
        case 'u':
            letter = 'A';
            break;

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

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

        default:
            letter = 'D';
            break;
    }
    return letter;
}

Solution2

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function getLetter(s) {
    let letter;
    // Write your code here
    switch (s[0]) {
        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;
}