[programmers] Lv0. 직각삼각형 출력하기 Day6 (re[ ])

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풀이1. 

 

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

let input = [];

rl.on('line', function (line) {
    input = line.split(' ');
}).on('close', function () {
    const n =Number(input[0]);
    
    let line =1;
    while(line <= n){
        let starStr = "";
        let cnt = 0;
        while(cnt < line){
            starStr = starStr + '*'
            cnt = cnt+ 1;
        }
        console.log(starStr)
        line = line + 1; 
    }
});