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@RequestParam vs @PathVariable
...d = false) Date dateOrNull) {
...
}
Also, request parameters can be optional, and as of Spring 4.3.3 path variables can be optional as well. Beware though, this might change the URL path hierarchy and introduce request mapping conflicts. For example, would /user/invoices provide the invoices for...
When to use -retainCount?
I would like to know in what situation did you use -retainCount so far, and eventually the problems that can happen using it.
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How to run a command before a Bash script exits?
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Here's an example of using trap:
#!/bin/bash -e
function cleanup {
echo "Removing /tmp/foo"
rm -r /tmp/foo
}
trap cleanup EXIT
mkdir /tmp/foo
asdffdsa #Fails
Output:
dbrown@luxury:~ $ sh traptest
t: line 9: asdffdsa: command not found
Removing /tmp/foo
dbrown@luxury:~ ...
Android: When should I use a Handler() and when should I use a Thread?
... a thread it is often useful to also use a Handler as a means of communication between the work thread that you are starting and the main thread.
A typical Thread/Handler interaction might look something like this:
Handler h = new Handler(){
@Override
public void handleMessage(Message msg...
uwsgi invalid request block size
...ame issue while following some tutorial.
The problem was that I set the option socket = 0.0.0.0:8000 instead of http = 0.0.0.0:8000.
socket option intended to be used with some third-party router (nginx for instance), while when http option is set uwsgi can accept incoming HTTP requests and route th...
C++ display stack trace on exception
I want to have a way to report the stack trace to the user if an exception is thrown. What is the best way to do this? Does it take huge amounts of extra code?
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Removing input background colour for Chrome autocomplete?
...ive {
-webkit-box-shadow: 0 0 0 30px white inset !important;
}
Additionally, you can use this to change the text color:
/*Change text in autofill textbox*/
input:-webkit-autofill {
-webkit-text-fill-color: yellow !important;
}
Advice: Don't use an excessive blur radius in the hundreds ...
INSERT IF NOT EXISTS ELSE UPDATE?
I've found a few "would be" solutions for the classic "How do I insert a new record or update one if it already exists" but I cannot get any of them to work in SQLite.
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XSLT equivalent for JSON [closed]
...here an XSLT equivalent for JSON? Something to allow me to do transformations on JSON like XSLT does to XML.
23 Answers
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NSLog the method name with Objective-C in iPhone
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print(__FUNCTION__) // Swift
NSLog(@"%@", NSStringFromSelector(_cmd)); // Objective-C
Swift 3 and above
print(#function)
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