var meaning javascript code example

Example 1: javascript declare a variable

//choose the best for your solution
var myVariable = 22; //this can be a string or number. var is globally defined

let myVariable = 22; //this can be a string or number. let is block scoped

const myVariable = 22; //this can be a string or number. const is block scoped and can't be reassigned

Example 2: var javascript

var is a keyword to define the varible in js but as of es-6 we, use let and const keywords for the same

Example 3: how to define variable in javascript

var <variable-name>;

var <variable-name> = <value>;

Example 4: js what does var mean

Used to create a variable that is globally scoped when not used in a function. 
When it is used in a function, it can only be used in that function and not
outside of it. This statement is comparable to let but more globalized.