Javascript - CS - CSE Questions and Answers

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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++;
}

Code 1

Code 2

Both Code 1 and Code 2

Cannot Compare

Answer : Option A

Explanation :

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

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