Any useful skills in debugging? about discussion

[yyx990803]

It could take time from you to isolate your problems in a jsFiddle, but it could take more time from me to identify your problems by just looking at descriptions instead of code.

For general debugging, use the development version and set Vue.config('debug', true), which prints a bunch of compilation information. Then, if you are having problem with a directive, you can try to locate the source code of that directive and make break points in Chrome dev tools. But basically you need to sort of understand how Vue works to be able to identify bugs.

The first problem is most likely due to using v-with with a computed property, which is an edge case which has not been thoroughly tested and is not recommended.

[tiye]

I'd like to talk about only debugging skills in this issue. And as find details on specific problems with new skills I leant I'll post new issue then.
So in order to debug in Vue, understanding the code is necessary now..

[jcaxmacher]

Vue.js is a pretty new library, so the best way to find out if there is a
bug in your code or Vue.js itself is to provide a working example in
JSFiddle. Isolating and reproducing your problem in JSFiddle will help you
learn how to debug any library.

On Thu, May 8, 2014 at 11:04 AM, JiyinYiyong 题叶 [email protected]:

I'd like to talk about only debugging skills in this issue. And as find
details on specific problems I'll post new issue then.
So in order to debug in Vue, understanding the code is necessary now..

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/21#issuecomment-42560944
.

[ayamflow]

Like all libraries, you have to use it some time to get around some of the common issues.
An helpful tip is to consider everything asynchronous in your app. An error can be raised because the array your are v-repeating is not here yet for instance.

You can also read some of the source of Vue - some parts are really explicit. For the rest, @yyx990803's comment is gold, DevTools + debug mode ftw.

[tiye]

Thanks. So prefering to reading source code and closing this issue.