# difference between undefine and null

undefine => absence of value

var x;
undefine

var y = null
null

typeof x;
undefine

typeof y
object

undefine main humain pata nahi hota hai ki value kya hogi string, number,boolen but in null main humain pata hai ki koi value hai object type jo ki ek bug hai javascript ka.

https://www.udemy.com/course/programming-in-javascript/learn/lecture/1818406#overview