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Best approach for designing F# libraries for use from both F# and C#
...alues (partially-applied functions, etc) with Func or Action, the rest are converted automatically. For example:
type A(arg) =
member x.Invoke(f: Func<_,_>) = f.Invoke(arg)
let a = A(1)
a.Invoke(fun i -> i + 1)
So it makes sense to use Func/Action where applicable. Does this eliminate...
Verifying that a string contains only letters in C#
I have an input string and I want to verify that it contains:
10 Answers
10
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Rounding float in Ruby
...
Keep in mind that 2.3000.round(2) => 2.3 and sprintf '%.2f', 2.300 => 2.30. In my opinion this is a flaw in round(), or it should have an option to preserve trailing zeros.
– Excalibur
Feb 11 '14 at 17:06
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How to print a number with commas as thousands separators in JavaScript
...ay be used, such as en-US
var number = 1234567890; // Example number to be converted
⚠ Mind that javascript has a maximum integer value of 9007199254740991
toLocaleString
// default behaviour on a machine with a local that uses commas for numbers
number.toLocaleString(); // "1,234,567,890"
// W...
Add new field to every document in a MongoDB collection
...to add a new_field to all your collection, you have to use empty selector, and set multi flag to true (last param) to update all the documents
db.your_collection.update(
{},
{ $set: {"new_field": 1} },
false,
true
)
EDIT:
In the above example last 2 fields false, true specifies the upser...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
... All to save people from adapting hard-coded "System32" to "System64" when converting to 64bit. Idiocy
– Armand
Sep 17 '14 at 0:18
...
Getting started with Haskell
...ional programming paradigm in Haskell. I've done this by reading tutorials and watching screencasts, but nothing really seems to stick.
Now, in learning various imperative/OO languages (like C, Java, PHP), exercises have been a good way for me to go. But since I don't really know what Haskell is cap...
What's the difference between UTF-8 and UTF-8 without BOM?
...ommended for UTF-8, but may be encountered in contexts where UTF-8 data is converted from other encoding forms that use a BOM or where the BOM is used as a UTF-8 signature. See the “Byte Order Mark” subsection in Section 16.8, Specials, for more information.
...
How to clear a notification in Android
...
I don't know why this isn't upvoted more and selected as the answer. This was the solution I was looking for. Thanks!
– loeschg
Jan 29 '13 at 23:48
...
Why do we need fibers
... and update it before returning a value. With fibers, we can automatically convert any internal iterator to an external one.
This doesn't have to do with fibers persay, but let me mention one more thing you can do with Enumerators: they allow you to apply higher-order Enumerable methods to other it...