Filter performance on objects array
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You can use the Array.prototype.filter method. Example coming soon
Regarding performance you should read here: Fastest way to find an item in a JavaScript Array
Author by
Ellone
Updated on July 17, 2020Comments
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Ellone almost 4 years
If I have a an array of objects called
filteredList
and a function such as :function buildList(filteredList, p1, p2, p3) { var resultList = []; for (var i =0; i < filteredList.length; i++) { if (filteredList[i].type === 'global' && filteredList[i].p1 === p1 && filteredList[i].p2 === p2 && filteredList[i].p3 === p3) resultList.push(filteredList[i]); } return resultList; }
What would be the performance difference if instead of looping through my array like I do, I would do something like :
filteredList.filter(rebuildList)
rebuildList
being a function checking the same conditions thanbuildList
Would it do the same ? (Looping through each element)
Can you think of a more optimized and efficient way to do it ? I'm calling a function like
buildList
many times in my project and it consumes a great amount of time.