How do I extract id of HTML control from given code snippet using javascript ?

Question

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HTML

<input style="width: 100%;" name="DateLead_DateEnd" id="DateLead_DateEnd" data-role="datepicker" type="text" class="k-input" role="combobox" aria-expanded="false" aria-owns="DateLead_DateEnd_dateview" aria-disabled="false" aria-readonly="false" aria-activedescendant="f8253ffd-a272-44a8-ba91-6a36b7b536b3_cell_selected">

What I have tried:

I have tried using getAttribute method but it gives error in browser

Posted 28-Jun-16 3:49am

Ni!E$H_WAGH

Updated 30-Jun-16 3:08am

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Sergey Alexandrovich Kryukov 28-Jun-16 10:02am

What have you tried so far?

Yes, it can be easily done via getting attribute, if you have a control reference, but it defeats the purpose of "id". Normally, id is used in JavaScript as input data, to find a control.

—SA

Richard Deeming 28-Jun-16 12:14pm

When you get an error, you need to tell us what that error is.

We can't see your screen, so if you don't tell us, we don't know.

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Prava-MFS · Answer 1 · 2016-06-30T03:08:00

Solution 1

I think, if you will access through element name or class (if it is unique), then you can get the id.

// Only when the name is unique for this element

var inputs = document.getElementsByName("DateLead_DateEnd");
alert(inputs[0].id);

OR

// Only when class name is unique for this element

var inputs = document.getElementsByClassName("k-input");
alert(inputs[0].id);

Hope, this will help you.

Posted 30-Jun-16 3:08am

Prava-MFS

Updated 30-Jun-16 3:38am

v3

Comments

Richard Deeming 30-Jun-16 9:33am

getElementsByTagName needs the tag name ("input"), not the value of the name attribute.
Element.getElementsByTagName() | MDN[^]

Prava-MFS 30-Jun-16 9:40am

Thanks @Richard for the catch. It should be 'getElementsByName' and the id can be accessed then as 'inputs[0].id'. Thank you for pointing it out :).