JSFiddle - React, Tailwind, and code Playground

JavaScript

function run() {
    x = 100;
    y = 100;
    z = 10;
    count = 0;
    for (i=0; i<x; i++) {
        //some code
        for (j=0; j<y; j++) {
            // some code
            for (k=0; k<z; k++) {
                //some code
                if(count===0) {
                     console.log('log emidiatelly ' + count);
                    setTimeout(function(){
                        console.log('log delayed ' + count);
                    },0);
                }
                count++;
            }
        }
    }
}
console.log('started');
run();
console.log('finished');