#02|| Variables in Javascript || Var || Let || Const || Javascript learn with Us
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//Variables
//Variables are Containers for Storing Data.
//JavaScript Variables can be declared in 3 ways:
//a)Using var
//b)Using let
//c)Using const
var
var x=6;
var x=5; //again we are taking x for storing value.it will //display this variable value.
x=9;//now we are chaning x value,this time it will display new value
console.log(x);
In var ,we can use same vaiable and we can assign new value.
interview question: var are Function-scoped.
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//Variables
//Variables are Containers for Storing Data.
//JavaScript Variables can be declared in 3 ways:
//a)Using var
//b)Using let
//c)Using const
let
let x=6; // already declared
//let x=5; //again we are taking x for storing value.it will /not display anything
//x=9;//now we are chaning x value,this time it will not //display anything
x=10;//here we can assign new value,it will show new value
console.log(x);
let ,we can not declare same vaiable and but we can assign new value.
interview question: let are Block-scoped.
..............................................
const
//Variables
//Variables are Containers for Storing Data.
//JavaScript Variables can be declared in 3 ways:
//a)Using var
//b)Using let
//c)Using const
const x=6; // already declared
//const x=5; //again we are taking x for storing value.it will //not display anything
//x=9;//now we are chaning x value,this time it will not //display anything
x=10;//we canot assign new value
console.log(x);
const ,we can not declare same vaiable and we can not assign new value .
question: const are Block-scoped.
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