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jQuery lose focus event
... read, so I found an alternate explanation on jQuery's documentation page (api.jquery.com/focusout) that I thought would be helpful to others: The focusout event is sent to an element when it, or any element inside of it, loses focus. This is distinct from the blur event in that it supports detecti...
Parse a .py file, read the AST, modify it, then write back the modified source code
...ou can parse the python code (represented in string) by simply calling the API ast.parse(). This returns the handle to Abstract Syntax Tree (AST) structure. Interestingly you can compile back this structure and execute it as shown above.
Another very useful API is ast.dump() which dumps the whole A...
Best way to use html5 data attributes with rails content_tag helper?
...
Rails 3.1 ships with built-in helpers:
http://api.rubyonrails.org/classes/ActionView/Helpers/TagHelper.html#method-i-tag
E.g.,
tag("div", :data => {:name => 'Stephen', :city_state => %w(Chicago IL)})
# => <div data-name="Stephen" data-city-state="[&q...
File.separator vs FileSystem.getSeparator() vs System.getProperty(“file.separator”)?
...systems on Windows perform the translation to a 'Windows-style' filesystem API so that it allows the OS and non-portable apps to work. Practical usage would have to be for an OS that supports weird and wonderful filesystems without a fixed paradigm like Windows.
– Bringer128
...
What's the best way to iterate an Android Cursor?
...t()) {
...
}
} finally {
cursor.close();
}
If you target API 19+, you can use try-with-resources.
try (Cursor cursor = db.rawQuery(...)) {
while (cursor.moveToNext()) {
...
}
}
share
...
Using HTML in Express instead of Jade
... res.sendfile(__dirname + '/index.html');
});)
From the official express api reference:
res.sendfile(path, [options], [fn]])
Transfer the file at the given path.
Automatically defaults the Content-Type response header field based on
the filename's extension. The callback fn(err) is...
Double Negation in C++
...
Most commonly encountered in the Windows API itself which doesn't know about the bool type - everything is encoded as 0 or 1 in an int.
– Mark Ransom
Jan 17 '12 at 19:42
...
Generate full SQL script from EF 5 Code First Migrations
...
The API appears to have changed (or at least, it doesn't work for me).
Running the following in the Package Manager Console works as expected:
Update-Database -Script -SourceMigration:0
...
How to find out the number of CPUs using python
...nted it for Windows by making a call to the GetProcessAffinityMask Windows API function:
https://github.com/giampaolo/psutil/blob/ee60bad610822a7f630c52922b4918e684ba7695/psutil/_psutil_windows.c#L1112
https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getprocessaffinitymask
So ...
Delete directories recursively in Java
... "does not follow symbolic links". (Javadoc: docs.oracle.com/javase/7/docs/api/java/nio/file/…)
– Stephan
Sep 16 '17 at 9:14
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