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What is the purpose of the word 'self'?
...to be added to every function as a parameter. To illustrate, in Ruby I can do this:
24 Answers
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How do I fix the “You don't have write permissions into the /usr/bin directory” error when installin
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only doing that solved for me a similar problem with the same error message
– Rich Stone
Oct 26 '18 at 18:59
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How do you append to a file in Python?
How do you append to the file instead of overwriting it? Is there a special function that appends to the file?
13 Answers
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How to concatenate stdin and a string?
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A bit hacky, but this might be the shortest way to do what you asked in the question (use a pipe to accept stdout from echo "input" as stdin to another process / command:
echo "input" | awk '{print $1"string"}'
Output:
inputstring
What task are you exactly trying to acc...
How do you determine the ideal buffer size when using FileInputStream?
... a method that creates a MessageDigest (a hash) from a file, and I need to do this to a lot of files (>= 100,000). How big should I make the buffer used to read from the files to maximize performance?
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How do you display code snippets in MS Word preserving format and syntax highlighting?
Does anyone know a way to display code in Microsoft Word documents that preserves coloring and formatting? Preferably, the method would also be unobtrusive and easy to update.
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PHP: Storing 'objects' inside the $_SESSION
...(more or less; but see GET vs. PUT) but almost everything anybody cares to do with a web app requires state to be maintained somewhere. Acting as if pushing the state into nooks and crannies amounts to some kind of theoretical win is just wrong. State is state. If you use state, you lose the vari...
How can I wait for a thread to finish with .NET?
... {
ThreadWorker worker = new ThreadWorker();
worker.ThreadDone += HandleThreadDone;
Thread thread1 = new Thread(worker.Run);
thread1.Start();
_count = 1;
}
void HandleThreadDone(object sender, EventArgs e)
{
// You should get the idea t...
Reverting a single file to a previous version in git [duplicate]
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Let's start with a qualitative description of what we want to do (much of this is said in Ben Straub's answer). We've made some number of commits, five of which changed a given file, and we want to revert the file to one of the previous versions. First of all, git doesn't keep version n...
Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
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How do I clear (or redraw) the WHOLE canvas for a new layout (= try at the game) ?
Just call Canvas.drawColor(Color.BLACK), or whatever color you want to clear your Canvas with.
And: how can I update just a part of the scre...