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JavaScript · Q34

Basic And Variables

Programming · JavaScript · question 34

Q34

Which is a more efficient code snippet ? Code 1 : for(var num=10;num>=1;num--) document.writeln(num); Code 2 : var num=10; while(num>=1) document.writeln(num); num++;

A.
Code 1
Answer
B.
Code 2
C.
Both Code 1 and Code 2
D.
Cannot Compare

Answer: Option A

Solution

Answer: Option A
Solution:
A for loop is always more efficient because it encapsules two individual statements(initialization and expression) within the braces.