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Using multiple let-as within a if-statement in Swift
...e code inside the if-let block won't be executed.
Note: the clauses don't all have to be 'let' clauses, you can have any series of boolean checks separated by commas.
For example:
if let latitudeDouble = latitude as? Double, importantThing == true {
// latitudeDouble is non-optional in here ...
Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad?
I'm hoping someone can provide some insight as to what's fundamentally different about the Java Virtual Machine that allows it to implement threads nicely without the need for a Global Interpreter Lock (GIL), while Python necessitates such an evil.
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Android - implementing startForeground for a service?
... notification = new NotificationCompat.Builder(this)
.setSmallIcon(R.mipmap.app_icon)
.setContentTitle("My Awesome App")
.setContentText("Doing some work...")
.setContentIntent(pendingIntent).build();
startForeground(1337, notification...
What's the difference between JPA and Hibernate? [closed]
...e has more features than JPA 2. But from a practical point of view, what really is the difference?
22 Answers
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No increment operator (++) in Ruby? [duplicate]
... Regarding point #3, since most things are objects, imagine if Ruby allowed you to do this: 1++ 1+2 # Would not be 3!
– Johntron
Feb 5 '13 at 13:46
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Reason to Pass a Pointer by Reference in C++?
...r by reference. For instance, if you have a class holding data in a dynamically allocated array, but you want to provide (nonconstant) access to this data to the client. At the same time, you do not want the client to be able to manipulate the memory through the pointer.
– user...
How to scroll to an element inside a div?
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This was really helpful! If you want to set the scroll multiple times you need to offset by your current scroll location. Here's how I did it in jQuery: $('#scrolling_div').scrollTop($('#scrolling_div').scrollTop() + $('#element_within_...
Does Go provide REPL?
...ng a feature-rich editor to it.
If you want something local, consider installing hsandbox. Running it simply with hsandbox go will split your terminal screen (with screen) where you can write code at the top and see its execution output at the bottom on every save.
There was a gotry among standard...
Need to reset git branch to origin version
I was accidentally working on a branch I shouldn't have been for a while, so I branched off of it giving it the appropriate name. Now I want to overwrite the branch I shouldn't have been on to the version from origin (github). Is there an easy way to do this? I tried deleting the branch and then ...
Change color of PNG image via CSS?
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But will huerotate or saturate actually do anthing to a white image?
– Keith
Feb 28 '16 at 23:05
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