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What does “O(1) access time” mean?
...term "O(1) access time" used to mean "quickly" but I don't understand what it means. The other term that I see with it in the same context is "O(n) access time". Could someone please explain in a simple way what these terms mean?
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Why is typeof null “object”?
I'm reading 'Professional Javascript for Web Developers' Chapter 4 and it tells me that the five types of primitives are: undefined, null, boolean, number and string.
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Building a minimal plugin architecture in Python
I have an application, written in Python, which is used by a fairly technical audience (scientists).
18 Answers
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...ould lead me to choose one over the other. From my own naive point of view it seems as though using a trie has some extra overhead since it isn't stored as an array but that in terms of run time (assuming the longest key is the longest english word) it can be essentially O(1) (in relation to the upp...
What is the difference between require() and library()?
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In addition to the good advice already given, I would add this:
It is probably best to avoid using require() unless you actually will be using the value it returns e.g in some error checking loop such as given by thierry.
In most...
Is there a VB.NET equivalent of C# out parameters?
...arameters, where the variable passed into a function does not need to be initialised?
7 Answers
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How do I declare a namespace in JavaScript?
...te a namespace in JavaScript so that my objects and functions aren't overwritten by other same-named objects and functions? I've used the following:
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Error when changing to master branch: my local changes would be overwritten by checkout
... error appears when you have modified a file and the branch that you are switching to has changes for this file too (from latest merge point).
Your options, as I see it, are - commit, and then amend this commit with extra changes (you can modify commits in git, as long as they're not pushed); or - ...
How do you organise multiple git repositories, so that all of them are backed up together?
With SVN, I had a single big repository I kept on a server, and checked-out on a few machines. This was a pretty good backup system, and allowed me easily work on any of the machines. I could checkout a specific project, commit and it updated the 'master' project, or I could checkout the entire thin...
python location on mac osx
I'm a little confused with the python on osx. I do not know if the previous owner of the laptop has installed macpython using macport. And I remembered that osx has an builtin version of python. I tried using type -a python and the result returned
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