About JavaScript

Question

Please explain me about loops, and it's uses

Answer 1

I think this question was asked a lot of times, but works the same in js as in php, c, cpp, c#, and so on.

for loop:
(start, until, iterate) { do this block }

while loop:
(condition) { do this block; iterate }
# if you forgot the iterator, you can create an infinite loop

use for loop if you know how many times the code should run; # do this 13 times
use while loop if you don't how many times the code should run; # ask the question until there is a "correct" answer

before asking similar questions, please, look after it. maybe is already answered....

I hope this helps

Answer 2

It will be a tedious task to be writing the same code over and over within my program. What if I'm suppose to write it 5000 times. Wow.😳. Then i have got a lot to type. Oh ok. I now remember there is something called loops.😀 I heard its going to make the task easier for me. I don't have to type the same code many times. Why don't i type it once and tell the program how many times i want that code to run. Where do i start from? There are different types of loops. The “for loop”, “while loop”, “do while”. Which one do i use then? In this my case, since i know the number of times i want to run that particular code it would be appropriate to use the for loop rather than others though the others can also do the same task for me. If i don't know the number of times i want to run the code ahead of time, then it will be appropriate to use the while loop.
In writing the for loop, i need a start value which is initialized once, an end value which will be a condition whch evaluates to true or false and an increment exp

Answer 3

syntax::
// common for
for (let i = 0; i < 10; i++) {

}
// common forEach
ARRAY.forEach((element, index) => {

});
// async for for ARRAYS
for (let element of ARRAY) {

}
// do-while
do {

} while(i > 10)
// while
while(i < 10) {
}