import {
    rangeGenerator,
    rangeObjectProperty,
    rangeClosure
} from './range.js';

const thousand = 1000;
const million = 1000000;

function benchmark(func) {
    const iters = 100 * thousand;
    // pre-heat jit
    for (let i = 0; i < iters; i++) {
        func();
    }

    let start = performance.now();
    for (let i = 0; i < iters; i++) {
        func();
    }
    let delta = (performance.now() - start) / iters;
    console.log(`${delta * thousand} us per loop`);
}

function testFor() {
    benchmark(() => {
        let acc = 0;
        for (let i = 0; i < thousand; i++) {
            acc += i;
        }
        return acc;
    });
}

function testOne(func) {
    benchmark(() => {
        let acc = 0;
        for (let i of func(thousand)) {
            acc += i;
        }
        return acc;
    });
}


console.log('raw for loop');
testFor();
console.log('\n');

console.log('rangeGenerator');
testOne(rangeGenerator);
console.log('\n');

console.log('rangeObjectProperty');
testOne(rangeObjectProperty);
console.log('\n');

console.log('rangeClosure');
testOne(rangeClosure);
console.log('\n');