Explain ‘variable scope’, ‘local scope’ and ‘global scope’ ?

[chinmay.sahoo]

Any variable declared inside the function are said to be local variable. These variable have meaning only within the function. Any variable declared outside the function are said to be global variable
Scope of the variable: - the extent to which a variable is accessible is said to be scope of the variable.

 

[johnbrent]

Variable Scope - Variable Scope (JavaScript) JavaScript has two degrees: worldwide and neighborhood. A variable that is pronounced outside a capacity definition is a worldwide variable, and its esteem is available and modifiable all through your program. A variable that is pronounced inside a capacity definition is neighborhood.

Global Scope - Variables characterized outside a capacity are [… ] called global scope.

Local Scope - Variables characterized inside of a capacity are local scope.

 

[david ho]

thank. can you give more information

 

[samir09]

JavaScript has two scopes: global and local. A variable that is declared outside a function definition is a global variable, and its value is accessible and modifiable throughout your program. A variable that is declared inside a function definition is local. It is created and destroyed every time the function is executed, and it cannot be accessed by any code outside the function. JavaScript does not support block scope (in which a set of braces {. . .} defines a new scope), except in the special case of block-scoped variables.

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