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In javascript, is an empty string always false as a boolean?
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Why exactly is eval evil?
...oes not give the desired result.
One then may want to repair the macro FOO by EVALuating the variable:
(defmacro foo (a b)
(list (if (eql (eval a) 3) 'sin 'cos) b))
(foo (+ 2 1) 4)
But then this still does not work:
(defun bar (a b)
(foo a b))
The value of the variable is just not known at co...
How to customize a Spinner in Android
...ith a custom layout for your spinner.
Spinner spinner = (Spinner) findViewById(R.id.pioedittxt5);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
R.array.travelreasons, R.layout.simple_spinner_item);
adapter.setDropDownViewResource(R.layout.simple_spinner_dr...
Pass all variables from one shell script to another?
...AGE"
b.sh:
#!/bin/sh
echo "[B] The message is: $MESSAGE"
MESSAGE="goodbye"
Then:
$ ./a.sh
[B] The message is: hello
[A] The message is: goodbye
This works equally well in bash. It also makes it easy to share more complex data which you could not express as an environment variable (at leas...
returning a Void object
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Write bytes to file
....g 0CFE9E69271557822FE715A8B3E564BE ) and I want to write it to a file as bytes. For example,
5 Answers
...
How can I tell if my server is serving GZipped content?
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How can I default a parameter to Guid.Empty in C#?
...ign flaws of Python. I'm somewhat glad C# (and VB.Net) avoided this issue by simply disallowing new objects in default parameters... though there are times where this ability is really nice in PHP.
– BlueRaja - Danny Pflughoeft
Feb 25 '11 at 14:19
...
Is a RelativeLayout more expensive than a LinearLayout?
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How to check if a function exists on a SQL database
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