Having the condition which is always true in your while loop isn't necessarily bad in some situations. Be cautious when using a while loop! break out of a loop This is called an infinite loop, which can cause your program to freeze. This means that i < 10 will always be true and the loop will never end.

Look at this example, which tries to print out the numbers 0 to 9: let i = 0 īut there is a bug here! There is no i++ at the end of the loop body, so i will never increase. However, if you don't handle the condition correctly, it's possible to create an infinite loop. The break statement will affect the nearest loop and not any parent loops so this means that if you want to stop or break a nested loop in JavaScript you can use the break statement safely.In a while loop, you need to write a condition for the loop to continue to run. To break a nested loop in JavaScript can be done in exactly the same way as breaking out of a normal for loop like we have shown above. The continue statement does a similar thing with an iteration except you won’t be able to return a value with it. Once the return statement is triggered, then the function will return any values provided by the return statement and then cancel the rest of the function. You can think of the continue statement a little like a return statement in a function.

This means that whenever we use the continue statement in a for loop in JavaScript we are saying that we don’t want to run any more of the code in the loop. The continue statement is used to skip a single iteration in a for loop (or while or for of loop).

You might also be wondering where the continue statement comes into play if the break statement is what we use to stop or break a for loop. However it is important to remember that the break statement will not work in any kind of object method such as or. The same also applies to a while loop and a for of loop in JavaScript. It is really that easy and simple to break a for loop in JavaScript.

In the above example the for loop will now stop and break when the iterator variable has reached 5 because of the condition in the if statement and then the break statement within it.

Javascript for break