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When should I use jQuery deferred's “then” method and when should I use the “pipe” method?
...});
In both cases you have to iterate over the list and extract the value from each object.
Wouldn't it be better to somehow extract the values beforehand so that you don't have to do this in both callbacks individually? Yes! And that's what we can use .pipe() for:
deferred.pipe(function(result) {
...
Where should I put tags in HTML markup?
...er attributes are not used nowhere? I mean, I viewed a lot of HTML sources from internet, and I don't see the async and defer attributes anywhere. ... ?
– john c. j.
May 10 '16 at 14:02
...
Best way to handle list.index(might-not-exist) in python?
...
I know it can only be thrown from that method but is it guaranteed to only be thrown for that reason? Not that I can think of another reason index would fail..but then aren't exceptions for exactly those things you may not think of?
...
How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
...en this would happen anyway in the DB, because the RDBMS will prevent them from inserting half information from A and half from B at the same time. The result will be the same but only 5 times ( or more ) slower.
Probably it could be better to take a look at the "Transactions and Concurrency" chapt...
Closing WebSocket correctly (HTML5, Javascript)
...frame consisting of just a 0xFF byte
followed by a 0x00 byte is sent from one peer to ask that the other peer
close the connection.
If you are writing a server, you should make sure to send a close frame when the server closes a client connection. The normal TCP socket close method can...
range() for floats
...esented are based on iterating over integers and deriving the final floats from the integers. This is more robust. If you do it directly with floats, you risk having strange one-off errors due to how floats are represented internally. For instance, if you try list(frange(0, 1, 0.5)), it works fine a...
erb, haml or slim: which one do you suggest? And why? [closed]
...s char count by much and a lot more readable than ERB.
For example (taken from official HAML site):
In ERB your view will look like this:
<div id="profile">
<div class="left column">
<div id="date"><%= print_date %></div>
<div id="address"><%= curr...
Scala equivalent of Java java.lang.Class Object
... Type System",
val c = new C
val clazz = c.getClass // method from java.lang.Object
val clazz2 = classOf[C] // Scala method: classOf[C] ~ C.class
val methods = clazz.getMethods // method from java.lang.Class<T>
The classOf[T] method returns the runtime represent...
How to force garbage collection in Java?
...n using a nifty little trick with WeakReference objects.
RuntimeUtil.gc() from the jlibs:
/**
* This method guarantees that garbage collection is
* done unlike <code>{@link System#gc()}</code>
*/
public static void gc() {
Object obj = new Object();
WeakRefer...
How to solve “Could not establish trust relationship for the SSL/TLS secure channel with authority”
...e attacks abound)
use makecert to create a root CA and
create certificates from that (ok
move, but there is still no CRL)
create an internal root CA using
Windows Certificate Server or other
PKI solution then trust that root
cert (a bit of a pain to manage)
purchase an SSL certificate from one
of t...