In jquery how to select a single element by class name?

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I am new to web development. I tried foll:
var a = $('.<classname>');
and then for first element a[0]
but when i use some function as a[0].fadeIn() it gives my error that there is no such function. Pls help me. How to do it?

What I have tried:

var a = $('.<classname>');
a[0].<function>;

Posted 24-Dec-17 14:32pm

Gameatro

Updated 24-Dec-17 16:45pm

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Peter Leow · Answer 1 · 2017-12-24T16:08:00

Solution 1

There are a number of ways, an example here Class Selector[^]
Bookmark this page jQuery Selectors[^]

Posted 24-Dec-17 16:08pm

Peter Leow

Karthik_Mahalingam · Answer 2 · 2017-12-24T16:45:00

Solution 2

a[0] is a pure javascript object, you cannot apply jquery function to it, instead you shall use .first() [^]

$('.classname').first().fadeIn();

Posted 24-Dec-17 16:45pm

Karthik_Mahalingam

Updated 24-Dec-17 16:46pm

v2