What does var mean in Javascript? [closed]

Answer 1

Variables are declared with the var keyword as follows:

Ex- var msg; //multi line declaration var focusname;

var msg, focusname; //Single line declaration

Here, msg & focusname are variable names that holds value.

var keyword is used only for declaration.

JavaScript is a dynamically typed language. This means that a JavaScript variable can hold a value of any data type.

Unlike many other languages, you don't have to tell JavaScript during variable declaration what type of value the variable will hold. The value type of a variable can change during the execution of a program and JavaScript takes care of it automatically.

Answer 2

var is used to declare the variable in javascript.

var msg=""; means you declared the variable msg which is empty and same with the focusname.

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