For

for (let num = 1;  num <= 12; num++) {
console.log(num)
}

for (let num = 1;  num <= 12; num++) {
console.log("1 x " + num)
}
for (let num = 1;  num <= 12; num++) {
const tabla = 1
console.log(tabla + " X " + num + " = " + tabla)
}