[백준] 2523번 : 별 찍기-13 - Javascript(자바스크립트)

https://www.acmicpc.net/problem/2523

const fs=require('fs')
n=parseInt(fs.readFileSync(0).toString())
for(i=1;i<=n;i++){
    for(j=0;j<i;j++) process.stdout.write("*");
    console.log();
}
for(i=n-1;i>=1;i--){
    for(j=0;j<i;j++) process.stdout.write("*");
    console.log();
}