JS10 Day 5: Arrow Functions

개요

JS10 Day 5: Arrow Functions

• https://www.hackerrank.com/challenges/js10-arrows/problem

해커랭크 10 Days of Javascript

#	문제	비고
4-5 Day e
12	JS10 Day 4: Create a Rectangle Object
13	JS10 Day 4: Count Objects
14	JS10 Day 4: Classes
15	JS10 Day 5: Inheritance
16	JS10 Day 5: Template Literals
17	JS10 Day 5: Arrow Functions

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상단

JavaScript

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'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++];
}

구현예시 1

JavaScript

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/*
 * Modify and return the array so that all even elements are doubled and all odd elements are tripled.
 * 
 * Parameter(s):
 * nums: An array of numbers.
 */
function modifyArray(nums) {
    for(let i in nums) {
        let num = nums[i];
        if( num%2 == 0 ) num *= 2;
        else num *= 3;
        nums[i] = num;
    }
    return nums;
}

구현예시 2

JavaScript

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/*
 * Modify and return the array so that all even elements are doubled and all odd elements are tripled.
 * 
 * Parameter(s):
 * nums: An array of numbers.
 */
function modifyArray(nums) {
    return nums.map(function(num) {
        if (num%2 == 0) return 2*num;
        else return 3*num;
    });
}

하단

JavaScript

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function main() {
    const n = +(readLine());
    const a = readLine().split(' ').map(Number);
    
    console.log(modifyArray(a).toString().split(',').join(' '));
}