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What's the result of += in C and C++?
...of an expression behaves unpredictably in all compilers due to the lack of intervening sequence point. If it were unspecified, it would behave predictably but differently on different compilers.
– Justin ᚅᚔᚈᚄᚒᚔ
May 18 '12 at 15:50
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How to trim leading and trailing white spaces of a string?
...s.
(example: the string value of {"first_name":" I have whitespace "} will convert to "\" I have whitespace \"")
Before you can trim anything, you'll need to remove the extra quotes first:
playground example
// ScrubString is a string that might contain whitespace that needs scrubbing.
type ScrubStr...
How to check for Is not Null And Is not Empty string in SQL server?
...? You are wrong though. If there is a covering index on Col SQL Server can convert <> to two range seeks on <'' and >''
– Martin Smith
Jul 16 at 8:27
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Providing a default value for an Optional in Swift?
...e if this does not match the Optional and the Optional is non-nil:
let x: Int?
let y = x.getOrElse(1.414) // y inferred as Double, assigned 1.414
let a: Int? = 5
let b: Double = a.getOrElse(3.14) // Runtime failure casting 5 to Double
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How to change the decimal separator of DecimalFormat from comma to dot/point?
I have this little crazy method that converts BigDecimal values into nice and readable Strings.
6 Answers
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What is the difference between Reader and InputStream?
... text, this is the stream to use.
You can wrap an InputStream and turn it into a Reader by using the InputStreamReader class.
Reader reader = new InputStreamReader(inputStream, StandardCharsets.UTF_8);
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Why does the expression 0 < 0 == 0 return False in Python?
Looking into Queue.py in Python 2.6, I found this construct that I found a bit strange:
9 Answers
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JOIN two SELECT statement results
...record is a separate task, with deadlines (and a PALT , which is just an INT of days from start to deadline. Age is also an INT number of days.)
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How do I create directory if it doesn't exist to create a file?
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var filePath = context.Server.MapPath(Convert.ToString(ConfigurationManager.AppSettings["ErrorLogFile"]));
var file = new FileInfo(filePath);
file.Directory.Create(); If the directory already exists, this method does nothing.
var sw = new StreamWriter(filePath...
Why would $_FILES be empty when uploading files to PHP?
...ES, not smart quotes pasted in from Word OR from a website blog (WordPress converts straight quotes to angle quotes!). If you have multiple forms on the page, make sure they both have this attribute. Type them in manually, or try straight single quotes typed in manually.
Make sure you do not have tw...