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AngularJS: Is there any way to determine which fields are making a form invalid?
...atically, just right click inspect (open developer tools in elements view) then search for ng-invalid with ctrl+f inside this tab. Then for each field you find ng-invalid class for, you can check if field is not given any value while it is required, or other rules it may violate (invalid email forma...
What is AppDomain? [duplicate]
...nning in some thread and some AppDomain calls code from another AppDomain, then the thread "crosses" the AppDomain border and runs code from that other AppDomain. So threads do not belong to specific AppDomains...although one can say that a thread "belongs" to the domain the code that created it was...
Change a Rails application to production
... this. Personally, I do this step to make sure everything else is working, then change it back and source it later.
RAILS_ENV=production rake db:migrate
RAILS_ENV=production rake assets:precompile if you are serving static assets. This will push js, css, image files into the /public folder.
RAILS_EN...
Paste a multi-line Java String in Eclipse [duplicate]
...enabling the feature you still have to first write two quotation marks and then paste the text inside those marks.
– Lycha
Jul 29 '10 at 13:18
...
Remove an item from a dictionary when its key is unknown
... two object that compare equal with ==). If you are doing this on purpose, then you could rewrite your code as
some_dict = {key: value for key, value in some_dict.items()
if value is not value_to_remove}
But this may not do what you want:
>>> some_dict = {1: "Hello", 2: "G...
MySQL Cannot drop index needed in a foreign key constraint
...ID)
REFERENCES mytable_d (ID) ON DELETE CASCADE;
> OK.
But then:
ALTER TABLE mytable
DROP KEY AID ;
gives error.
You can drop the index and create a new one in one ALTER TABLE statement:
ALTER TABLE mytable
DROP KEY AID ,
ADD UNIQUE KEY AID (AID, BID, CID, DID);
...
Getting rid of \n when using .readlines() [duplicate]
...ct. If you don't care about whitespace at the start and end of your lines, then the big heavy hammer is called .strip().
However, since you are reading from a file and are pulling everything into memory anyway, better to use the str.splitlines() method; this splits one string on line separators and...
Android draw a Horizontal line between views
...pace on the screen. The solution is to use a vanilla View element instead. Then the background will be drawn as desired. (You can also then avoid the support library dependency if it's not otherwise needed.)
– Ted Hopp
Sep 10 '15 at 1:21
...
JavaScript inheritance: Object.create vs new
...
so basically to summarize, if you do .prototype = new then you are inheriting any values you assigned to this in the base class, and when you do object.create you are ONLY inheriting what is on the prototype in the base class, right?
– davidjnelson
...
How do I make my string comparison case insensitive?
...s, and have keys like "SomeKey", "SOMEKEY" and "somekey" be seen as equal, then you will have to wrap your string in another class (you cannot extend String since it is a final class). For example :
private static class HashWrap {
private final String value;
private final int hash;
pub...