JSFiddle - React, Tailwind, and code Playground

by PARK KYUNGSIK

JavaScript

const flag = 0;
const a = 49;
let sIdx = flag ? 3 : 2;

const q = Math.floor(a / 10);
const r = a % 10;
console.log(sIdx, q, r)

let l = sIdx;
for(let i=sIdx; i<=a;i++) {
  if(0 == (i%10)) {
     l++;
  	console.log(i, l);
  }
}
/*
for(let i=1; i<=q;i++) {
  let idx = 1==i ? sIdx : 1;
  l = loop(i, idx);
	console.log(i, l);
}

console.log(loop(1, r));

function loop(c, idx) {
  for(;idx<9; idx++) {
  	if(c == q && idx == sIdx) break; 
    //console.log(sIdx);
  }
  return idx;
}
*/