jQuery: difference between filter and find -


this question has answer here:

what difference between filter , find function in jquery ?? filter function , find function same job in jquery according experience. can tell difference between them?

the find method, retrieves group of elements match given selector. 

var items = $( "#group" ).find( "#.item" ); // finds items within group

the filter method can reduce matched elements smaller collection selector.

var special_items = items.filter( ".special" ); // extract "special" items

essentially, can both same job. simulate find function filter passing every element filter function. doesn't make sense might know when trying understand difference between them.

the following 2 commands yield same number of elements:

$( document ).find( "a" ).length  $( "*" ).filter( "a" ).length

with regard performance consideration ever can, limit number of elements need scanned.


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