CODEWITHSUNDEEP
javascript
Becky
Becky

Reputation: 5605

Count number of divs by id within a specified div - js

Below is the div structure. How can I find the number of divs which has the id of _1item only inside categoryFurniture in javascript?

I tried this by doing some google research but no luck.

document.querySelectorAll('[id^=_1item]').length

div structure example:

<div id="categoryFurniture">
   <div id= "xyz_1item"></div>
   <div id= "abc_1item"></div>
   <div id= "xyz_2item"></div>
   <div id= "pqr_1item"></div>
   <div id= "pqr_2item"></div>
</div>

<div id="categoryFruits">
   <div id= "xyz_1item"></div>
   <div id= "abc_2item"></div>
   <div id= "xyz_3item"></div>
   <div id= "pqr_1item"></div>
   <div id= "pqr_3item"></div>
</div>

output should be 3

Upvotes: 2

Views: 2085

Answers (2)

Arun P Johny
Arun P Johny

Reputation: 388446

You can use querySelectorAll with id and attribute ends selector

document.querySelectorAll('#categoryFurniture [id$=_1item]')

then you can read the length property of the nodeList returned above to get the count

Demo: Fiddle

Upvotes: 4

mohamedrias
mohamedrias

Reputation: 18576

This will return you 3 as count

document.querySelector("#categoryFurniture").querySelectorAll('[id$=_1furniture]').length

or

document.querySelectorAll('#categoryFurniture [id$=_1furniture]').length

EDIT:

Based on your update on question, you need to replace _1furniture with _1item

document.querySelectorAll('#categoryFurniture [id$=_1item]').length

Upvotes: 1

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