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What kind of virtual machine is BEAM (the Erlang VM)?
From what I understand a virtual machine falls into two categories either "system virtual machine" or a "process virtual machine". It's kind of fuzzy to me where BEAM lies. Is there another kind of virtual machine I am not aware of?
...
Lambda function in list comprehensions
...ion.
I don't think the purpose of the OP was to generate a list of squares from 0 to 9. If that was the case, we could give even more solutions:
squares = []
for x in range(10): squares.append(x*x)
this is the good ol' way of imperative syntax.
But it's not the point. The point is W(hy)TF is this...
Diff Algorithm? [closed]
... Hmmm, in short, sometimes figuring out the underlying algorithm from actual source code (especially if it's optimized to be efficient) can be quite complex. I will be able to understand what the program is doing step by step, but not exactly "why", or a high level overview about that... E...
How to generate random SHA1 hash to use as ID in node.js?
...nter by 1 million, we get the probability of the length of number returned from Math.random.
len frequency(%)
------------------
13 0.0004
14 0.0066
15 0.0654
16 0.6768
17 6.6703
18 61.133 <- highest probability
19 28.089 <- second highest probability
20 ...
Programmatically scroll a UIScrollView
...y: y), animated: true)
See the guide "Scrolling the Scroll View Content" from Apple as well.
To do slideshows with UIScrollView, you arrange all images in the scroll view, set up a repeated timer, then -setContentOffset:animated: when the timer fires.
But a more efficient approach is to use 2 im...
Why is creating a Thread said to be expensive?
...urces as long as it is alive; e.g. the thread stack, any objects reachable from the stack, the JVM thread descriptors, the OS native thread descriptors.
The costs of all of these things are platform specific, but they are not cheap on any Java platform I've ever come across.
A Google search foun...
Where is the itoa function in Linux?
...e sprintf(target_string,"%d",source_int) or (better yet, because it's safe from buffer overflows) snprintf(target_string, size_of_target_string_in_bytes, "%d", source_int). I know it's not quite as concise or cool as itoa(), but at least you can Write Once, Run Everywhere (tm) ;-)
Here's the old (...
Java code for getting current time [duplicate]
... is a moment on the timeline in UTC.
java.util.Date date = java.util.Date.from( zdt.toInstant() );
Time Zone
Better to specify explicitly your desired/expected time zone rather than rely implicitly on the JVM’s current default time zone.
ZoneId zoneId = ZoneId.of( "America/Montreal" );
ZonedD...
Swift Programming: getter/setter in stored property
..."var" keyword fool you! It does mean that there are two entries accessible from the private namespace, but that has no bearing on protected/public and keeps the value of foo valid at all times. This is essentially the "view" pattern. The problem you get with rewriting via didSet, in addition to it h...
How to have a transparent ImageButton: Android
... alpha-blended composite will be performed each time the Surface changes." from developer.android.com/reference/android/view/SurfaceView.html
– Quintin Robinson
Aug 4 '10 at 6:02
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