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Creating variables in java script, Programming Languages

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You must use the keyword ''var'' to create and initialize a variable. The placement of the variable creation in your code is very important.
Examples:
var first = 21;
var second = "a string"
var myBoolean = true;

Variables can either be global or local.

Global - the variable is accessible by all parts of the script.

Local - the variable is accessible only by the function in which it is defined.

Example:

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