JS10 Day 1: Functions 문서 원본 보기

==개요==
;<nowiki>Day 1: Functions</nowiki>
* https://www.hackerrank.com/challenges/js10-function/problem
* 참고: [[자바스크립트 factorial()]]

{{JS10 헤더}}
{{JS10 0-1}}
|}

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<syntaxhighlight lang='javascript'>
'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++];
}
</syntaxhighlight>
<syntaxhighlight lang='javascript'>
function factorial(n) {
    var result = 1;
    for(var i=2; i<=n; i++) {
        result *= i;
    }
    return result;
}
</syntaxhighlight>
<syntaxhighlight lang='javascript'>
function main() {
    const n = +(readLine());
    
    console.log(factorial(n));
}
</syntaxhighlight>