Update js codes.docx

Author: priya42bagde

js codes.docx

@@ -1849,7 +1849,8 @@ until they are assigned because they are in Temporal dead zone.To avoid Temporal
 -- console.log(getName); without parenthisis -- print the body of function.
 -- if we remove var x=7 then it will get as refrennce error: x is not defined because x is not present at all and we are trying to access it.
 -- with arrow and function expression 
--- callstack 
+-- callstack
+-- console.log(greetingName) //print the body  of a function
 
 Examples:
 1. Hoisting Function: If i write below code then JS compiler auto move declaration first then call of a function.