Related Questions

Which one of the following functions will you use to check that the class exists before you work with it?
A class_exist()
B class_exists()
C exist()
D exists_class()
Who said, "The State exists because crime exists in society, otherwise there would be no need of a State"?
A Herbert Spencer
B J. S. Mill
C John Locke
D Tocqueville
The ratio of boys to girls in class A is 3 to 4 . The ratio of boys to girls in class B is 4 to 5 . If the two classes were combined, the ratio of boys to girls in class B is two less than the number of girls in class A. How many girls are in class A?
A 87
B 11
C 12
D 15
Three maths classes: X, Y, and Z take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and the average score of class Y and Z is 81. What is the average score of the combined classes X, Y, and Z?
A 81
B 81.5
C 82
D 84.5
Half the graduating class of a college was accepted by a business school. One-third of the class was accepted by a law school. It one-fifth of the class was accepted by both types of school, what fraction of the class was accepted only by a law school?
A 2/15
B 1/6
C 1/3
D 1/2
Which function do you have to use to check whether the $path you’ve stored exists?
A path_dir()
B path()
C is_dir()
D path_dir()
At the beginning of a class period, half of the students in a class go to the library. Later in the period, half of the remaining students go to the computer lab. If there are 5 students remaining in the class, how many students were originally in the class?
A 12
B 16
C 24
D 32
The object whose properties are inherited by all instances of the class, and properties whose values are functions behaving like instance methods of the class, is
A Instance object
B Constructor object
C Destructor object
D Prototype object
Which one of the following functions is used to determine object type?
A obj_type()
B type()
C is_a()
D is_obj()
Among the below given functions, Node supports which of the following client-side timer functions?
A getInterval()
B Interval()
C clearTime()
D clearTimeout()

Next steps