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How do you append to an already existing string?
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#!/bin/bash
message="some text"
message="$message add some more"
echo $message
some text add some more
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Android: How to turn screen on and off programmatically?
...ess to full-off. Keep this very strongly in mind. You will be using much more power than you would if the screen was really off.
Now for turning the screen back to regular brightness, just setting the brightness value should do it:
WindowManager.LayoutParams params = getWindow().getAttributes();...
When splitting an empty string in Python, why does split() return an empty list while split('\n') re
...,'.split(',') # Two cuts
['', '', '']
Question: And is there any more convenient way to count lines in a string?
Yes, there are a couple of easy ways. One uses str.count() and the other uses str.splitlines().
Both ways will give the same answer unless the final line is missing the \n.
I...
Requirejs domReady plugin vs Jquery $(document).ready()?
...y, as well as wrapping its code inside a domReady() function call.
Furthermore, this means that domReady! enjoys that same advantage over $(document).ready().
Re the differences between domReady and $(document).ready()
Both sniff out whether/when the DOM is ready in essentially the same way.
Re ...
What does immutable mean?
...trings in memory, "foo" and "oo". Even if you're not going to use "foo" anymore, it'll stick around until it's garbage collected.
One reason why string operations are comparatively expensive.
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How do I run a shell script without using “sh” or “bash” commands?
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Vagrant error : Failed to mount folders in Linux guest
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Why should I use 'li' instead of 'div'?
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In git, is there a simple way of introducing an unrelated branch to a repository?
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There is a new feature (since V1.7.2) which makes this task a little more high-level than what's in any of the other answers.
git checkout now supports the --orphan option. From the man page:
git checkout [-q] [-f] [-m] --orphan <new_branch> [<start_point>]
Create a new orpha...