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Detail Form
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1.
In the following JavaScript statement, the datatype enclosed within the square brackets for a book object should be ________________________________________.
book[datatype]=assignment_value;
2.
In JavaScript, what is the significance of the var count = [1,,3]; statement?
3.
What is the output of following JavaScript code:
var a = [1,2,3,4,5];
a.slice(0,3);
a.slice(0,3);
4.
In JavaScript, the simultaneous execution of the reverse() and the join() methods __________________.
5.
In JavaScript, which of the following statements is equivalent to the o.m(x,y); statement?
6.
What is the value of string2Num in the following JavaScript code:
var string2Num=parseInt("123xyz");
7.
In JavaScript, the B class can extend the A class when _____________.
8.
In JavaScript, the provide() and require() functions are used for_____________________________________ respectively.
9.
In JavaScript, how many global symbols can be defined by modules?
10.
In JavaScript, the ‘$’ in the RegExp object is a ______________.