How to declare and initialize variables in jQuery

Question

I'm working in company as web developer as fresher and example solutions online and I can make sense of most of the code but I'm not entirely sure what this line does.

var $hello = $('<div class=newHello></div>'); I'm assuming that it creates a jQuery variable with the value set to a blank with the class of hello , but I want to be certain and also understand the syntax.

Why does a dollar sign precede the variable value? I know dollar signs are used in jQuery

give me some best example to understand this concept

Duplicate of how to define variable in jquery

TylerH
– TylerH

2020-01-12 20:58:05 +00:00
Commented Jan 12, 2020 at 20:58 — TylerH
– TylerH, Commented Jan 12, 2020 at 20:58

Frankusky · Accepted Answer · 2020-01-11 06:29:51Z

0

That is just another variable, maybe the previous developer was a php developer, or just to difference which variables are jquery variables instead of other variables (such as using underscore before a variable to tell is a constant variable)

answered Jan 11, 2020 at 6:29

Frankusky

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Manjeet · Accepted Answer · 2023-05-16 12:54:48Z

0

when you use $ prefix variable initialization then this type of variable stores a jquery Object. like as $hello holds jquery Object

answered May 16, 2023 at 12:54

Manjeet

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