How do you declare and initialize variables in JavaScript?
How do you declare and initialize variables in JavaScript?
17216-Jul-2023
Updated on 17-Jul-2023
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How do you declare and initialize variables in JavaScript?
Aryan Kumar
17-Jul-2023Sure, here are the steps on how to declare and initialize variables in JavaScript:
string
,number
,boolean
, andnull
.var
,let
, orconst
keyword. Thevar
keyword is the most common keyword to use, but thelet
andconst
keywords are preferred in modern JavaScript.Here is an example of how to declare and initialize a variable in JavaScript:
This code will declare three variables:
name
,age
, andisAlive
. Thename
variable will be a string, theage
variable will be a number, and theisAlive
variable will be a boolean. The variables will be initialized with the values "John Doe", 30, and true, respectively.