Run results for: Array filter vs. for loop - with for in

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/113.0

Browser: Firefox 113

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Script Preparation code:

var arr = [1,2,3,4,5,6,7,8,9,0], farr;

AخA
 
var arr = [1,2,3,4,5,6,7,8,9,0], farr;

Tests:

Filter
farr = arr.filter(function(item) { return (item>4); });
farr = arr.filter(function(item) {
return (item>4);
});

for (var i=0,len=arr.length;i<len;i++) {
  if (arr[i]<5) continue;
  farr.push(arr[i]);
}

 
for (var i=0,len=arr.length;i<len;i++) {  if (arr[i]<5) continue;  farr.push(arr[i]);}

For 2
for (var i=0,len=arr.length;i<len;i++) { if (arr[i]>4) farr.push(arr[i]); }
for (var i=0,len=arr.length;i<len;i++) {
if (arr[i]>4) farr.push(arr[i]);
}

for (var i in arr) {
  if (arr[i]>4) farr.push(arr[i]);
}

 
for (var i in arr) {  if (arr[i]>4) farr.push(arr[i]);}