Table of Contents
- 1 Which loop is faster in Javascript?
- 2 How many statements can be included in a loop?
- 3 What is difference between VAR and let in Javascript?
- 4 Which loop always executes its body at least one time?
- 5 What are the different types of looping statements in C?
- 6 How many loops can you have in a while loop?
Which loop is faster in Javascript?
for loop
The fastest loop is a for loop, both with and without caching length delivering really similar performance.
How many statements can be included in a loop?
Once the condition becomes false, the control goes out of the loop. After exiting the loop, the control goes to the statements which are immediately after the loop. The body of a loop can contain more than one statement. If it contains only one statement, then the curly braces are not compulsory.
Which loop executes the statements at least once?
do while loop
In most computer programming languages, a do while loop is a control flow statement that executes a block of code at least once, and then either repeatedly executes the block, or stops executing it, depending on a given boolean condition at the end of the block.
How many times is the loop body of the while statement executed?
The while statement will continue executing until a = 11 because then the loop-continuation-condition a ≤ 10 becomes false (which will cause the while statement to terminate). This while-statement will loop 10 times !
What is difference between VAR and let in Javascript?
var and let are both used for variable declaration in javascript but the difference between them is that var is function scoped and let is block scoped. It can be said that a variable declared with var is defined throughout the program as compared to let.
Which loop always executes its body at least one time?
This might be a serious bug. The body of a do loop is always executed at least once.
Does a while loop always execute once?
while statement creates a loop that executes a specified statement until the test condition evaluates to false. The condition is evaluated after executing the statement, resulting in the specified statement executing at least once.
How many times the statements in the Do While loop will be executed if the condition is false?
Explanation: As I mentioned in the beginning of this guide that do-while runs at least once even if the condition is false because the condition is evaluated, after the execution of the body of loop.
What are the different types of looping statements in C?
Depending upon the position of a control statement in a program, looping statement in C is classified into two types: 1. Entry controlled loop 2. Exit controlled loop In an entry control loop in C, a condition is checked before executing the body of a loop.
How many loops can you have in a while loop?
You can use one or more loops inside any other while, for, or do..while loop. Loop control statements change execution from its normal sequence. When execution leaves a scope, all automatic objects that were created in that scope are destroyed. C supports the following control statements.
How to execute the body of a while loop at least once?
As we saw in a while loop, the body is executed if and only if the condition is true. In some cases, we have to execute a body of the loop at least once even if the condition is false. This type of operation can be achieved by using a do-while loop. In the do-while loop, the body of a loop is always executed at least once.
What are the advantages of single-loop processing over multiple loops?
Fact #3: If the process ( algorithm ) allows the loops to get merged without any side-effects ( on resources / blocking / etc ) into a single pass, the single-loop processing may always benefit from the reduced looping overheads.