JSFiddle - React, Tailwind, and code Playground

JavaScript

var results = [];

var i = 0
    a = 0
    startTime = 0;

startTime = new Date().getTime();

for (i = 0; i < 3000000000; i = i + 1) {
    a = i % 5;   
}
console.log(a);
results.push(new Date().getTime() - startTime);

var i = 0
    a = 0
    startTime = 0;

startTime = new Date().getTime();

for (i = 0; i < 3000000000; i = i + 1) {
    a = i % 5;   
}
console.log(a);
results.push(new Date().getTime() - startTime);

var i = 0
    a = 0
    startTime = 0;

startTime = new Date().getTime();

for (i = 0; i < 3000000000; i = i + 1) {
    a = i % 5;   
}
console.log(a);
results.push(new Date().getTime() - startTime);

var i = 0
    a = 0
    startTime = 0;

startTime = new Date().getTime();

for (i = 0; i < 3000000000; i = i + 1) {
    a = i % 5;   
}
console.log(a);
results.push(new Date().getTime() - startTime);

var i = 0
    a = 0
    startTime = 0;

startTime = new Date().getTime();

for (i = 0; i < 3000000000; i = i + 1) {
    a = i % 5;   
}
console.log(a);
results.push(new Date().getTime() - startTime);

for (var i = 0; i < results.length; i = i + 1) {
    console.log('Time needed: ' + results[i] + 'ms');
}