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Favorite Django Tips & Features?
...s of ...', I am curious to hear about your favorite Django tips or lesser known but useful features you know of.
55 Answers...
Stop Chrome Caching My JS Files
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As of Chrome 61.0.3163.100, it seems that the option now lives under More Tools/Network Conditions. "Developer Tools" option no longer exists.
– justian17
Oct 17 '17 at 13:44
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What is meant with “const” at end of function declaration? [duplicate]
...4) will internally correspond to something like Foo f; Foo_Bar(&f, 4). Now adding the const at the end (int Foo::Bar(int random_arg) const) can then be understood as a declaration with a const this pointer: int Foo_Bar(const Foo* this, int random_arg). Since the type of this in such case is cons...
How do you get a string from a MemoryStream?
If I am given a MemoryStream that I know has been populated with a String , how do I get a String back out?
11 Answers...
Code Golf: Lasers
... $_.
$s="#";
$s is the symbol of whatever the beam is sitting on top of now. Since the laser emitter is to be treated like a wall, set this to be a wall to begin with.
if (tr/v<^/>v</) {
my $o;
$o .= "\n" while s/.$/$o .= $&, ""/meg;
tr,/\\,\\/, for $o, $s;
$_ = $o;
}
If t...
What do I have to do to get Core Data to automatically migrate models?
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I've now found out that this is quite simple - once you know where to look.
In my AppDelegate I set-up the NSPersistentStoreCoordinator - and you need to add some options to this to tell it to handle auto-migrate:
NSDictionary *...
Rails 3: Get Random Record
...-----+---------------+---------+---------+-------+------+-------+
we can now use only indexes and the primary key and do the job about 500 times faster!
UPDATE:
as pointed out by icantbecool in comments the above solution has a flaw if there are deleted records in the table.
A workaround in tha...
What is Gradle in Android Studio?
...using Eclipse for your development purposes, and, chances are, you didn't know how to build your Android APK without Eclipse.
You can do this on the command line, but you have to learn what each tool (dx, aapt) does in the SDK.
Eclipse saved us all from these low level but important, fundamental de...
Deprecated: mysql_connect()
...It keeps the program going, and mysql_xxxx functions mean no problem right now since they work well in the current version. All you're telling about it being deprecated is PART OF THE ERROR MESSAGE so it's not a wise thing to repeat. Everyone can see it's deprecated, yes, thank you, next please. ...
Detect if Android device has Internet connection
...eck if there is an active Internet connection is to try and connect
to a known server via http.
public static boolean hasActiveInternetConnection(Context context) {
if (isNetworkAvailable(context)) {
try {
HttpURLConnection urlc = (HttpURLConnection) (new URL("http://www.go...