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I want to do something if all .cimg have the same width.

<img class='cimg' src='...' alt='img'>
<img class='cimg' src='...' alt='img'>
<img class='cimg' src='...' alt='img'>

js 

let w = $.map($('.cimg'), (e) => $(e)[0].naturalWidth);

result - [960, 960, 960] 

if(all elements of w are equal){do_something();}  // how to do this?
qadenza
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  • Does this answer your question? [Check if all values of array are equal](https://stackoverflow.com/questions/14832603/check-if-all-values-of-array-are-equal) – Kerwin Sneijders Dec 22 '19 at 11:41

1 Answers1

3

Set

You can use [...new Set()] to get all the unique items from the array, then simply check the length of the resulted array. If the length is 1 then all width are same otherwise not:

let w = $.map($('.cimg'), (e) => $(e)[0].naturalWidth); 
w = [...new Set(w)]
if(w.length == 1){console.log('same');}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<img class='cimg' src='...' alt='img'>
<img class='cimg' src='...' alt='img'>
<img class='cimg' src='...' alt='img'>
Mamun
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