do not understand what .each() does here

**princesse** · 03-10-2016, 02:30 PM

Hi guys,
I was reading about jquery .each() function and I saw something I do not understand. I was wondering if someone could explain it to me
It is a text field with the id person for example

Code:

$('#person').each(function(){
var value = $(this).val()
})

I thought .each() was used to iterate over many elements. Is it also possible to use it on a single element? I do not understand what the person is doing here. Is it because the value of the field is dynamic?
Thanks in advance for the helpful answers

**xelawho** · 03-11-2016, 04:49 AM

your assumptions are correct - this is a very silly piece of code. In legal HTML, an ID must be unique to each element, and iterating over a collection of one is as pointless as it sounds. You would get exactly the same result from this one-liner:

Code:

var value = $('#person').val();

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