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How do I make a placeholder for a 'select' box?
... disabled option as the default selection (placeholder). It shows the next one by default, in this case "Durr".
– jarnoan
Feb 27 '12 at 12:12
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Can you get the column names from a SqlDataReader?
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Already mentioned. Just a LINQ answer:
var columns = reader.GetSchemaTable().Rows
.Cast<DataRow>()
.Select(r => (string)r["ColumnName"])
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What's the difference between process.cwd() vs __dirname?
...is module's property, and represents the file path of the module. In node, one module resides in one file.
Similarly, __filename is another module's property, which holds the file name of the module.
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How does Python 2 compare string and int? Why do lists compare as greater than numbers, and tuples g
The following snippet is annotated with the output ( as seen on ideone.com ):
2 Answers
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if, elif, else statement issues in Bash
...just shortcuts for actual programs (at least the first bracket, the second one is just syntactic sugar as I understand it). To make sense of it, see the actual manpage for left bracket: $ man [
– Michael Johansen
May 16 '17 at 21:58
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Convert SVG to PNG in Python
...e(<svg filename>)
# or, for in memory SVG data:
handle= rsvg.Handle(None, str(<svg data>))
handle.render_cairo(ctx)
img.write_to_png("svg.png")
Update: as of 2014 the needed package for Fedora Linux distribution is: gnome-python2-rsvg. The above snippet listing still works as-is.
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What does the slash mean in help() output?
...meters prior to it are positional-only. Positional-only parameters are the ones without an externally-usable name. Upon calling a function that accepts positional-only parameters, arguments are mapped to parameters based solely on their position.
The syntax is now part of the Python language speci...
Xcode: failed to get the task for process
I've run in release mode my app on a iPhone with Xcode 4.
13 Answers
13
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A simple command line to download a remote maven2 artifact to the local repository?
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If I could think of one I'd post it. I don't know of any plugin that does quite what's called for. I know how to write one ...
– bmargulies
Nov 21 '09 at 20:39
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How to debug a Flask app
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You can use app.run(debug=True) for the Werkzeug Debugger edit as mentioned below, and I should have known.
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