JSFiddle - React, Tailwind, and code Playground

by kiokotzu

JavaScript

var box = [];

var filas = prompt('numero de filas');
var columnas = prompt('numero de columnas');

for(var i = 0; i < columnas; i++){
	for(var j = 0; j < filas; j++){
  	box[i][j] = "x"
  }
}

console.log(box);