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

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.1

Device Platform: Mobile

Date tested: 17 days ago

Test name	Executions per second
map-filter	63623.6 Ops/sec
reduce	11449.8 Ops/sec
reduce with desctructuring	3540.1 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)=>{
  var value=mapping(x);
  if(filtering(value)) acc.push(value);
  return acc;
}
var reducingWithDestructuring=(acc,x)=>{
  var value=mapping(x);
  if(filtering(value)) {
	return [...acc, value];
  }
  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

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

map-filter

reduce

reduce with desctructuring