JSFiddle - React, Tailwind, and code Playground

by monteslu

HTML

<div id="output"></div>

JavaScript

var a = [1,2,3,4,5,6,7,8,9,10,11,12];


var rows = 4;
var cols = 3;
var output = '';
for(var i = 0; i < rows; i++;){
    output += '<div>'
   for(var j = 0; j < cols; j++;){
     output+= '&nbsp;' + a[(i * cols) + j];        
    
   }               
    output += '</div>';
}
console.log(output);
document.getElementById('output').innerHTML = output;