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When are you truly forced to use UUID as part of the design?
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@Chamnap uuid.raw will give you the byte string. The hash method is not useful to you. It's used for hash tables and comparison operations internally within Ruby. All the methods for converting to and from various UUID representations are defined as class methods an...
How to use Greek symbols in ggplot2?
...like adding '*' to the ticks)
Just use unicode characters within the text string.
seems to work well for all options I can think of.
Edit: previously it did not work in facet labels. This has apparently been fixed at some point.
library(ggplot2)
ggplot(mtcars,
aes(mpg, disp, color=factor...
SignalR: Why choose Hub vs. Persistent Connection?
...ver side in the OnReceived method. You'd also have to deserialize the data string there instead of receiving the strongly typed objects as you do with hub methods.
There aren't many reasons to choose PersistentConnection over Hubs. One reason I'm aware of is that it is possible to send preserialize...
How to properly compare two Integers in Java?
...imizing in this way:
public class BoxingLol {
public static void main(String[] args) {
for (int i = 0; i < Integer.MAX_VALUE; i++) {
Integer a = i;
Integer b = i;
if (a != b) {
System.out.println("Done: " + i);
Syste...
What is the difference between `sorted(list)` vs `list.sort()`?
...all in-place operations).
sorted() works on any iterable, not just lists. Strings, tuples, dictionaries (you'll get the keys), generators, etc., returning a list containing all elements, sorted.
Use list.sort() when you want to mutate the list, sorted() when you want a new sorted object back. Use...
How to get the return value from a thread in python?
The function foo below returns a string 'foo' . How can I get the value 'foo' which is returned from the thread's target?
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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
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NewState：状态的数值（0..4，见上文）
StateString：状态的名称（“Disconnected”等）
建立连接时出错
在尝试建立连接之前，首先会检查客户端的状态是否允许这样做（状态 = Disconnected 或 ConnectionAborted）。...
Do I really have a car in my garage? [duplicate]
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For simplicity's sake, I would override the ToString() methods in each class and return the concrete type as a string then use a switch() to decide what to do with each item.
– Captain Kenpachi
Jul 23 '14 at 7:38
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Add days to JavaScript Date
...usually work, sometimes can lead to wrong results because of conversion to string and vice versa. It should be var result = new Date(date.getTime());
– Marcin
Nov 10 '15 at 10:22
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Why do some functions have underscores “__” before and after the function name?
...dler, ThreadableMixin):
def _worker(self):
self.res = self.render_string("template.html",
title = _("Title"),
data = self.application.db.query("select ... where object_id=%s", self.object_id)
)
...
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