Javascript div count problem

Question

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i use some div with same id like

HTML

<div id="skillDiv">
<span id="otherChk">test</span>
</div>
<div id="skillDiv">
<span id="otherChk">good</span>
</div>

Now i want to count total number of div which id is 'skillDiv' and i use this code

C#

var elements = document.all('skillDiv').length;

here when only one div is exist then it show element = undefined and if div is exist more than one then it show the right number.how to solve this problem? Plz help me.

What I have tried:

var elements = document.all('skillDiv').length;

Posted 8-Jun-16 19:40pm

Member 9361273

Updated 8-Jun-16 20:28pm

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Jinesh N · Accepted Answer · 2016-06-08T20:25:00

Solution 2

Here id must be unique. It is used for identity of that element.use class instead.

in jquery

JavaScript

$(".classname").length

will give you the count.

Posted 8-Jun-16 20:25pm

Jinesh N

Updated 8-Jun-16 20:36pm

v2

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2016-06-08T20:28:00

Id should be unique. If you want to provide some common thing to some elements, use the class property and assign the same class to all the elements you want.

HTML

<div class="skillDiv">
<span id="otherChk">test</span>
</div>
<div class="skillDiv">
<span id="otherChk">good</span>
</div>

Now you can select elements by the common class you have provided.

Sergey Alexandrovich Kryukov · Accepted Answer · 2016-06-08T20:18:00

You are doing it wrong. This is not valid HTML, because it is required that all values of all id elements should be unique in the document. To start with, you have to remove id="skillDiv" or make all values unique.

Now, document.all is not a standard API; this is legacy, non-standard one. Please see:
Document.

If you really need all elements of some tag name, all on the page (document), you can simply use document.getElementsByTagName("div").length:
Document.getElementsByTagName().

—SA

Javascript div count problem

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