Consider the following code snippet :var c = counter(), d = counter(); function constfuncs() { var funcs = []; for(var i = 0; i < 10; i++)… — Answer & Discussion

Consider the following code snippet :var c = counter(), d = counter(); function constfuncs() { var funcs = []; for(var i = 0; i < 10; i++) funcs[i] = function() { return i; }; return funcs;}var funcs = constfuncs();funcs[5]()What does the last statement return ?

A9
B0
C10
DNone of the mentioned

Correct answer: C

Join the discussion Report an error

Discussion 1

CCommunity07 Jun 2021

10

The code above creates 10 closures, and stores them in an array. The closures are all defined within the same invocation of the function, so they share access to the variable i. When constfuncs() returns, the value of the variable i is 10, and all 10 closures share this value. Therefore, all the functions in the returned array of functions return the same value.