HOW TO FIND THE USER ID OF ANY FACEBOOK USER OR PAGE

STEP 1. 
First of all copy and paste user name of any facebook user from url bar.
e.g
In
https://www.facebook.com/tinysilex            
Tinysilex is username.

STEP 2.
Now just replace www with graph.
i.e
https://graph.facebook.com/tinysilex

and hit enter.
STEP 3.
Now you'll get detail of that user. Here id is shown in figure.

 That red arrow mark indicate the user ID

[Note: You Can Apply This Trick Here!!]

" ENJOY & WAIT FOR NEXT "