Question 2
Consider the JavaScript Code :
Answer : (4) M=2; D1 displays ”12”; D2 displays ”6”.
Consider the JavaScript Code :
var y = "12" ;
function f( ) {
var y = "6" ;
alert (this.y) ;
function g( ) { alert (y) ; }
g( );
}
f( );
If M is the number of alert dialog boxes generated by this JavaScript code and D1, D2, ....,DM
represents the content displayed in each of the M dialog boxes, then :Answer : (4) M=2; D1 displays ”12”; D2 displays ”6”.
Explanation Question 2
The JavaScript this keyword is used within any function scope or the global scope, and in each scope it receives a different value. The value of this inside a function, effectively depends on the object which called it.
The JavaScript this keyword is used within any function scope or the global scope, and in each scope it receives a different value. The value of this inside a function, effectively depends on the object which called it.
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