Which of the following is the correct code for invoking a function without this keyword at all, and also too determine whether the strict mode is in effect?
A. var strict = (function { return this; });
B. mode strict = (function() { return !this; }());
C. var strict = (function() { return !this; }());
D. mode strict = (function { });
Answer: Option C
Solution(By Examveda Team)
The above code defines and invokes a function to determine if we’re in strict mode.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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