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Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
...applies to any default value that is subsequently mutated (e.g. hashes and strings), not just arrays.
TL;DR: Use Hash.new { |h, k| h[k] = [] } if you want the most idiomatic solution and don’t care why.
What doesn’t work
Why Hash.new([]) doesn’t work
Let’s look more in-depth at why Has...
WebApi's {“message”:“an error has occurred”} on IIS7, not in IIS Express
...dmx file to a different location and had forgotten to change the connectionstrings node in the config (connectionsstrings node was placed in a seperate file using "configSource", but that's another story).
share
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WebException how to get whole response with a body?
... {
WebClient client = new WebClient();
client.Encoding = Encoding.UTF8;
string content = client.DownloadString("https://sandiegodata.atlassian.net/wiki/pages/doaddcomment.action?pageId=524365");
Console.WriteLine(content);
Console.ReadKey();
} catch (WebException ex) {
var resp = new StreamRea...
How do you make a web application in Clojure? [closed]
...
Cons (1):
Documentation (improving). Also, I don't want to program in strings embedded in an nginx config file if that is the only way to do it.
Probably complicates a bit the first deployment (?)
Immutant
Note : I haven't played with it.
Pros :
integrated (caching, messaging, scheduling,...
Simple explanation of clojure protocols
...ding Ruby. I suppose that ability to (re)define methods of any class (e.g. String, Fixnum) in Ruby is analogy to Clojure's defprotocol.
– defhlt
Jun 4 '13 at 21:37
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Simulating ENTER keypress in bash script
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This only works for things like yum. Where that string is expected.
– einarc
Apr 8 '19 at 19:09
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show 1 more com...
Rename specific column(s) in pandas
...umns' (the axis argument was introduced in v0.21.
Index.str.replace() for string/regex based replacement.
If you need to rename ALL columns at once,
DataFrame.set_axis() method with axis=1. Pass a list-like sequence. Options are available for in-place modification as well.
rename with axis=1
d...
BroadcastReceiver with multiple filters or multiple BroadcastReceivers?
...ou exactly mean by "to do this dynamically"? Simply include all the action strings inside your intent-filters and perform if-else to identify your required action strings.
– waqaslam
May 9 '13 at 10:22
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File.separator vs FileSystem.getSeparator() vs System.getProperty(“file.separator”)?
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System.getProperties() can be overridden by calls to System.setProperty(String key, String value) or with command line parameters -Dfile.separator=/
File.separator gets the separator for the default filesystem.
FileSystems.getDefault() gets you the default filesystem.
FileSystem.getSeparator()...
Static variables in member functions
...ere will be a static int i (say foo<int>::i) and separate for foo<string> there will be a separate static int i (say foo<string>::i) and so on. i will be incremented separately for foo<int> than from the foo<string>. Hope that clears the doubt.
– i...