Consider the following code snippet :
var tensquared = (function(x) {return x*x;}(10));
Will the above code work ?
var tensquared = (function(x) {return x*x;}(10));
A. Yes, perfectly
B. Error
C. Exception will be thrown
D. Memory leak
Answer: Option A
Solution(By Examveda Team)
Function name is optional for functions defined as expressions. Function expressions are sometimes defined and immediately invoked.Consider the code snippet given below
var count = [1,,3];
A. The omitted value takes “undefined”
B. This results in an error
C. This results in an exception
D. None of the mentioned
A. true false
B. false true
C. true true
D. false true
The pop() method of the array does which of the following task ?
A. decrements the total length by 1
B. increments the total length by 1
C. prints the first element but no effect on the length
D. None of the mentioned
Consider the following code snippet :
if (!a[i]) continue ;
A. Skips the undefined elements
B. Skips the non existent elements
C. Skips the null elements
D. All of the mentioned
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