The method or operator used to identify the array is
isarrayType()
==
===
typeof
Answer : D
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1) The method or operator used to identify the array is
2) The pop() method of the array does which of the following task ?
decrements the total length by 1
increments the total length by 1
prints the first element but no effect on the length
None of the mentioned
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3) The reduce and reduceRight methods follow a common operation called
4) Consider the following code snippet :
var a = [1,2,3,4,5];
a.slice(0,3);
What is the possible output for the above code snippet ?
5) Consider the following code snippet
var a1 = [,,,];
The result would be
var a2 = new Array(3);
0 in a1
0 in a2