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Deploying website: 500 - Internal server error
...aved.
I just compiled the application and published to a local folder
and FTP the published folder to goDaddy.
It worked and finally my problem was solved.
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...
List of Delphi language features and version in which they were introduced/deprecated
...dynamic arrays to a pointer using the @ operator is only allowed when hard-casting the array.
More flexible namespace resolution of unit names
Delphi 10.1 Berlin
Native support for Utf8String and RawByteString type on all platforms
The [weak], [unsafe] and [volatile] attributes are support...
Can you get the column names from a SqlDataReader?
...lumns = reader.GetSchemaTable().Rows
.Cast<DataRow>()
.Select(r => (string)r["ColumnName"])
.ToList();
//Or
var columns = Enumerable.Range(0, reader.FieldCount)
...
Functional design patterns [closed]
...
Lot of FP stuff are published on Oleg's site:
http://okmij.org/ftp/
Presentation about FP patterns from Josh Suereth:
http://jsuereth.com/intro-to-fp/
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How do I convert a string to enum in TypeScript?
...
So we can use typecast: let s = "Green"; let typedColor = <keyof typeof Color> s;
– SergeyT
Jun 8 '17 at 13:06
...
What is Type-safe?
...hon)), some of them will actually give you a runtime error on invalid type casting.
While its convenient, it opens you up to a lot of errors that can be easily missed, and only identified by testing the running program. Personally, I prefer to have my compiler tell me if I made that mistake.
Now, ...
Java: Instanceof and Generics
...(Object o) {
try {
abstractMethod((T) o);
} catch (ClassCastException e) {
//...
You are casting the object to T (your generic type), just to fool the compiler. Your cast does nothing at runtime, but you will still get a ClassCastException when you try to pass the wrong type of...
OS X: equivalent of Linux's wget
... to use homebrew, you could also:
Install wget manually:
curl -# "http://ftp.gnu.org/gnu/wget/wget-1.17.1.tar.xz" -o "wget.tar.xz"
tar xf wget.tar.xz
cd wget-1.17.1
./configure --with-ssl=openssl -with-libssl-prefix=/usr/local/ssl && make -j8 && make install
Or, use a bash alias:...
What is the !! (not not) operator in JavaScript?
...
An easy way to describe it is: Boolean(5) === !!5; Same casting, fewer characters.
– Micah Snyder
Apr 24 '09 at 18:27
43
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Get all column names of a DataTable into string array using (LINQ/Predicate)
...
Try this (LINQ method syntax):
string[] columnNames = dt.Columns.Cast<DataColumn>()
.Select(x => x.ColumnName)
.ToArray();
or in LINQ Query syntax:
string[] columnNames = (from dc in dt.Columns.Cast<DataCo...