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Remove trailing zeros
...mple as this, if the input IS a string? You can use one of these:
string.Format("{0:G29}", decimal.Parse("2.0044"))
decimal.Parse("2.0044").ToString("G29")
2.0m.ToString("G29")
This should work for all input.
Update Check out the Standard Numeric Formats I've had to explicitly set the precisio...
What is the difference between a HashMap and a TreeMap? [duplicate]
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TreeMap is an example of a SortedMap, which means that the order of the keys can be sorted, and when iterating over the keys, you can expect that they will be in order.
HashMap on the other hand, makes no such guarantee. Therefore, when iterating over...
How to use Class in Java?
...lly do behind the scenes over at this question , so we all know that Vector<int[]> is a vector of integer arrays, and HashTable<String, Person> is a table of whose keys are strings and values Person s.
However, what stumps me is the usage of Class<> .
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Good Haskell source to read and learn from [closed]
...ommend.
Read code by people from different grad schools in the 1990s
Oxford style
Glasgow style or (this)
Chalmers style (or this)
York style
Portland style or OGI style (or this)
Utrecht style
Yale style
Special case: CMU/Elliott
Read code by the old masters certain people (incomplete list)
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How to check if a number is a power of 2
Today I needed a simple algorithm for checking if a number is a power of 2.
25 Answers
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Get current date in milliseconds
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There are several ways of doing this, although my personal favorite is:
CFAbsoluteTime timeInSeconds = CFAbsoluteTimeGetCurrent();
You can read more about this method here. You can also create a NSDate object and get time by calling timeIntervalSince1970 which returns the seconds si...
How to remove files from git staging area?
...th/to/file
Just like git add, you can unstage files recursively by directory and so forth, so to unstage everything at once, run this from the root directory of your repository:
git reset HEAD -- .
Also, for future reference, the output of git status will tell you the commands you need to run t...
Is there any method to get the URL without query string?
...reason that this would be unsafe. It is also within specs (both the specs for what window.location.href should return and the specs for how URL's work) so it shouldn't have any future problems. It's more easily read and understood for cleaner code. It's shorter for smaller code. And lastly it's less...
What is the parameter “next” used for in Express?
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It passes control to the next matching route. In the example you give, for instance, you might look up the user in the database if an id was given, and assign it to req.user.
Below, you could have a route like:
app.get('/users', function(req, res) {
// check for and maybe do something with ...
If statement in aspx page
I want to write a basic if statement on my site to display either item 1 or item 2 depending on if a variable is set to true.
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