Global and Local Variable scope

Global and Local Variable scope

by Chintan Upadhayay

JavaScript

x = "123"; //GLobal Varriable
var y = "321";//GLobal Varriable

function doMe(){
    a = "123"; //GLobal Varriable
    var b = "321";//local Varriable
    alert("a:"+a+"  --  b:"+b);
    b = "something else";
    alert("a:"+a+"  --  b:"+b);
    
};

doMe()
alert("a:"+a);
alert("a:"+a+"  --  b:"+b); // `b` will not be defined, check console.log