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What Makes a Method Thread-safe? What are the rules?
...ve with disappointment. This is a very difficult subject.
So, I guess my ultimate question is: "Is there a short list of rules that define a thread-safe method?
Nope. As you saw from my example earlier an empty method can be non-thread-safe. You might as well ask "is there a short list of ru...
What are some good Python ORM solutions? [closed]
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SQLAlchemy is more full-featured and powerful (uses the DataMapper pattern). Django ORM has a cleaner syntax and is easier to write for (ActiveRecord pattern). I don't know about performance differences.
SQLAlchemy also has a decl...
How to compare strings in Bash
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My issue was that $a actually had " " surrounding it as part of the string literal value, therefore I had to use the escape character to $b to compare the values. I was able to find this after running bash -x ./script.sh , ...
How to use GROUP_CONCAT in a CONCAT in MySQL
If I have a table with the following data in MySQL:
7 Answers
7
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How to debug Angular JavaScript Code
...scope related to an visual element. I did a lot of breakpoints not only in my own code, but also in angular.js itself, but sometimes it is simply not the most effective way.
Although the methods below are very powerful, they are definitely considered to be bad practice if you actually use in product...
Enum type constraints in C# [duplicate]
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The CLR does support it, at least according to my understanding of page 166 f the spec.
– SLaks
Aug 26 '09 at 1:10
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How can I get the button that caused the submit from the form submit event?
...ng keypress events in input[type="text"] and similar.
Update 2017-01: For my library Hyperform I chose not to use activeElement but to catch all events, that lead to form submission. The code for this is on Github.
If you happen to use Hyperform, this is how you would access the button that trigge...
How to add a button to a PreferenceScreen?
...ce android:title="Acts like a button"
android:key="@string/myCoolButton"
android:summary="This is a cool button"/>
Then for the java in your onCreate()
Preference button = findPreference(getString(R.string.myCoolButton));
button.setOnPreferenceClickListener(new ...
How to run a class from Jar which is not the Main-Class in its Manifest file
... create your jar without Main-Class in its Manifest file. Then :
java -cp MyJar.jar com.mycomp.myproj.dir2.MainClass2 /home/myhome/datasource.properties /home/myhome/input.txt
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Detect if device is iOS
...ora is on the right track since maxTouchPoints is supported in iOS 13. See my answer.
– Bob Arlof
May 29 at 21:28
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