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Difference between . and : in Lua
I am confused about the difference between function calls via . and via :
3 Answers
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Devise Secret Key was not set
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I ran bundle update this morning and started getting the same error.
I added it as a line in config/initializers/devise.rb and the error was fixed.
This seems to be the commit which introduced it.
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Allow user to select camera or gallery for image
...ager with PackageManager.queryIntentActivities() for both original intents and create the final list of possible Intents with one new Intent for each retrieved activity like this:
List<Intent> yourIntentsList = new ArrayList<Intent>();
List<ResolveInfo> listCam = packageManager.q...
Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
...king at CoffeeScript if you want an alternative syntax. It has some shorthand that is similar to what you are looking for.
For example The Existential Operator
zip = lottery.drawWinner?().address?.zipcode
Function shortcuts
()-> // equivalent to function(){}
Sexy function calling
func '...
Is there a difference between “raise exception()” and “raise exception” without parenthesis?
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The short answer is that both raise MyException and raise MyException() do the same thing. This first form auto instantiates your exception.
The relevant section from the docs says, "raise evaluates the first expression as the exception object. It must be either a subcla...
Is there a destructor for Java?
...hat need to explicitly tidy up, the convention is to define a close method and use finalize only for sanity checking (i.e. if close has not been called do it now and log an error).
There was a question that spawned in-depth discussion of finalize recently, so that should provide more depth if requi...
What is the difference between ports 465 and 587?
These ports 465 and 587 are both used for sending mail (submitting mail) but what is the real difference between them?
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Timeout for python requests.get entire response
I'm gathering statistics on a list of websites and I'm using requests for it for simplicity. Here is my code:
19 Answers
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:after vs. ::after
Is there any functional difference between the CSS 2.1 :after and the CSS 3 ::after pseudo-selectors (other than ::after not being supported in older browsers)? Is there any practical reason to use the newer specification?
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How to perform OR condition in django queryset?
...It would help if you add a print of object.query so we can relate both ORM and Query output to familiarize with it. BTW great example.
– Eddwin Paz
Aug 23 '17 at 21:05
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