how to break promise chain

by

Any way other than explicitly throwing error?

You may need to throw something, but it does not have to be an error.

Most promise implementations have method catch accepting the first argument as error type (but not all, and not ES6 promise), it would be helpful under this situation:

function BreakSignal() { }

getPromise()
    .then(function () {
        throw new BreakSignal();
    })
    .then(function () {
        // Something to skip.
    })
    .catch(BreakSignal, function () { })
    .then(function () {
        // Continue with other works.
    });

I add the ability to break in the recent implementation of my own promise library. And if you were using ThenFail (as you would probably not), you can write something like this:

getPromise()
    .then(function () {
        Promise.break;
    })
    .then(function () {
        // Something to skip.
    })
    .enclose()
    .then(function () {
        // Continue with other works.
    });

More Related Contents:

  1. Unable to sign into google with selenium automation because of “This browser or app may not be secure.”
  2. How do I access previous promise results in a .then() chain?
  3. Removing nested promises
  4. How do I promisify native XHR?
  5. How to synchronize a sequence of promises?
  6. How to make a promise from setTimeout
  7. Promise.all: Order of resolved values
  8. Does never resolved promise cause memory leak?
  9. How can I synchronously determine a JavaScript Promise’s state?
  10. Limit concurrency of promise being run
  11. Resolve Javascript Promise outside the Promise constructor scope
  12. Promise.resolve vs new Promise(resolve)
  13. Throwing an Error in jQuery’s Deferred object
  14. How to set default browser window size in Protractor/WebdriverJS
  15. Why is onRejected not called following Promise.all() where Promise.reject() included in array passed to Promise.all()?
  16. Set value of input instead of sendKeys() – Selenium WebDriver nodejs
  17. TypeError: Cannot read property ‘then’ of undefined
  18. Promise chain continues before inner promise is resolved
  19. What is the best general practice to timeout a function in promise [closed]
  20. How to handle HTTP code 4xx responses in fetch api
  21. Using setInterval() with a .map method in array and returning as a promise
  22. Are there differences between .then(functionReference) and .then(function(value){return functionReference(value)})?
  23. Return value from a Promise constructor
  24. Why does .then() chained to Promise.resolve() allow const declaration to be reassigned?
  25. Returning an Axios Promise from function
  26. what happens when a Promise never resolves? [duplicate]
  27. Disable images in Selenium Python
  28. Return value of Promise’s resolve/reject functions
  29. Why is try {} .. catch() not working with async/await function?
  30. Weird behavior with Promise throwing “Unhandled promise rejection” error

Leave a Comment