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Cross compile Go on OSX?
...ocess is described here but for the TLDR-ers (like me) out there: you just set the GOOS and the GOARCH environment variables and run the go build.
For the even lazier copy-pasters (like me) out there, do something like this if you're on a *nix system:
env GOOS=linux GOARCH=arm go build -v github.c...
Javascript event handler with parameters
...rrectly. If the value of your params change each time the event handler is set, it will produce unexpected results because it doesn't close over the value of param1 or param2. If those values change, they will not be set to the value which they were during the time the event handler was created. The...
How can I display a list view in an Android Alert Dialog?
...uilderSingle = new AlertDialog.Builder(DialogActivity.this);
builderSingle.setIcon(R.drawable.ic_launcher);
builderSingle.setTitle("Select One Name:-");
final ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(DialogActivity.this, android.R.layout.select_dialog_singlechoice);
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How to set default values in Rails?
I'm trying to find the best way to set default values for objects in Rails.
17 Answers
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MySQL IF NOT NULL, then display 1, else display 0
...NULL values
SELECT ISNULL(NULLIF(fieldname,'')) FROM tablename
It will set null if it is an empty string, then be true on that also.
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Get properties and values from unknown object
...e, but you shouldn't use this information to drive logic based on property sets.
Assuming you have control over the implementations of the types, you should derive from a common base class or implement a common interface and make the calls on those (you can use the as or is operator to help determi...
Understanding Spliterator, Collector and Stream in Java 8
...n::getName).collect(Collectors.toList());
// Accumulate names into a TreeSet
Set<String> set = people.stream().map(Person::getName).collect(Collectors.toCollection(TreeSet::new));
// Convert elements to strings and concatenate them, separated by commas
String joined = things.stream()
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How to open a local disk file with JavaScript?
...can reproduce the problem in Safari and Chrome (it works fine in Firefox). Setting the value of the input to null on each onClick event should do the trick, see: stackoverflow.com/a/12102992/63011
– Paolo Moretti
Oct 11 '15 at 23:05
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Visual Studio: How to break on handled exceptions?
...ose to break on Thrown or User-unhandled exceptions.
EDIT: My instance is set up with the C# "profile" perhaps it isn't there for other profiles?
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
Since setting up my development environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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