What is the fundamental rule of lexical scoping?
A. Functions are declared in the scope
B. Functions are executed using scope chain
C. All of the mentioned
D. None of the mentioned
Answer: Option B
A. Functions are declared in the scope
B. Functions are executed using scope chain
C. All of the mentioned
D. None of the mentioned
Answer: Option B
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. None of the above
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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