forEachWithBreak = function ( callback ) Using a as an alternative to a forEach loop to break One option is to throw an exception with the callback you pass into the function.īy doing this you will cause an error which will stop all processes in your JavaScript application.īecause you don’t want your whole application to stop, we will need to wrap the loop in a try catch statement so we can catch the error that we are going to throw so that the error will act as a break statement.īefore we get into the example, this is really not ideal and as I have said at the start if you need to break out of a loop then your best option is to not use forEach and instead use a for loop to break, or the method.Īrray.

How to break a JavaScript foreach loop using an exception

With all that said, we do have a few options for how to replicate a break in a JavaScript forEach loop if you still need to find a way to break a forEach loop. log (a ) break } ) // Uncaught Synta圎rror: Illegal break statement If you have tried to use a break statement within a forEach loop then you would have got the error “Uncaught Synta圎rror: Illegal break statement”, which is expected because you can only use the break statement inside the direct scope of a loop, and not a function (even if the function is inside of the loop).Ĭonsole. If you need to to stop or perform a break in a JavaScript forEach loop then you probably shouldn’t be using a forEach loop, instead try using either a for loop, or which we will look at in more detail later in the post.Ī is designed to loop over every item in an array once whilst providing you with the array item, the index and the full array in a callback that you provide.īecause of this there is no way to just break out of it.

Let’s get started! How to break a JavaScript foreach loop

In this post, we will cover everything you need to know about how to break a JavaScript forEach loop as well as the alternatives. It is not possible to break a JavaScript forEach loop in the conventional sense, so what should you do instead?

Javascript for break