[JAVASCRIPT][HackerRank]10 days of JS Day4
in Algorithm
Switch
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.,
athroughz) only.
'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();
});
function readLine() {
return inputString[currentLine++];
}
function getLetter(s) {
let letter;
// Write your code here
switch(true){
case 'aeiou'.includes(s[0]):
letter = "A";
break;
case 'bcdfg'.includes(s[0]):
letter = "B";
break;
case 'hjklm'.includes(s[0]):
letter = "C";
break;
case 'npqrstvwxyz'.includes(s[0]):
letter = "D";
break;
}
return letter;
}
switch문으로 조건 넣는 문제이다.
