

MCQOPTIONS
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1. |
Consider the following code snippet :var a = []; a.unshift(1); a.unshift(22);a.shift(); a.unshift(3,[4,5]); a.shift(); a.shift();a.shift();The final output for the shift() is? |
A. | 1 |
B. | [4,5] |
C. | [3,4,5] |
D. | Exception is thrown |
Answer» B. [4,5] | |