Run results for: filter-map vs reduce vs reduce with destructuring 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36

Browser: Chrome 141

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 9 months ago

reduce

43K/s

map-filter

39K/s

reduce with desctructuring

6K/s

View exact numbers

Test name	Executions per second
✓ reduce	43,072 Ops/sec
map-filter	38,933 Ops/sec
reduce with desctructuring	6,429 Ops/sec

Script Preparation code:

a = [];
for (i = 0; i < 1000; i++) a.push(Number(i) / 1000);
var filtering = x => (x * 114514) % 1 > 0.5;
var mapping = x => x + 0.1919;
var reducing = (acc, x) => {
    if (filtering(x)) acc.push(mapping(x));
    return acc;
}
var reducingWithDestructuring = (acc, x) => {
    if (filtering(x)) {
        return [...acc, mapping(x)];
    }
    return acc;
}

Tests:

map-filter
a.filter(filtering).map(mapping);
reduce
a.reduce(reducing,[]);
reduce with desctructuring
a.reduce(reducingWithDestructuring,[]);

Run results for: filter-map vs reduce vs reduce with destructuring 2

modified version of `map-filter vs reduce` that switches the order of operations

map-filter

reduce

reduce with desctructuring