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How can I append a string to an existing field in MySQL?
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You need to use the CONCAT() function in MySQL for string concatenation:
UPDATE categories SET code = CONCAT(code, '_standard') WHERE id = 1;
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How do I get the first element from an IEnumerable in .net?
... to get the first item on any type IEnumerable.
Call it like so:
List<string> items = new List<string>() { "A", "B", "C", "D", "E" };
string firstItem = First<string>(items);
Or
int[] items = new int[] { 1, 2, 3, 4, 5 };
int firstItem = First<int>(items);
You could mod...
Parallel.ForEach vs Task.Run and Task.WhenAll
...combine both options by writing:
await Task.Run(() => Parallel.ForEach(strings, s =>
{
DoSomething(s);
}));
Note that this can also be written in this shorter form:
await Task.Run(() => Parallel.ForEach(strings, DoSomething));
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jQuery convert line breaks to br (nl2br equivalent)
... if you get the error "x.replace is not a function" then use x.toString().replace
– Vörös Amadea
Aug 15 '19 at 12:18
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Get the POST request body from HttpServletRequest
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Easy way with commons-io.
IOUtils.toString(request.getReader());
https://commons.apache.org/proper/commons-io/javadocs/api-2.5/org/apache/commons/io/IOUtils.html
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How to get a function name as a string?
In Python, how do I get a function name as a string, without calling the function?
12 Answers
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Int or Number DataType for DataAnnotation validation attribute
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This is the better solution, since this covers strings. int.MaxValue only covers until 2.147.483.647
– Christian Gollhardt
Aug 19 '15 at 17:51
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How to grep (search) committed code in the Git history
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this looks for differences that introduce or remove an instance of <string>.
It usually means "revisions where you added or removed line with 'Foo'".
the --pickaxe-regex option allows you to use extended POSIX regex instead of searching for a string.
Example (from git log): git log -S"frot...
Drop all tables whose names begin with a certain string
How can I drop all tables whose names begin with a given string?
14 Answers
14
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How to prepend a string to a column value in MySQL?
...QL update statement for updating a particular field of all the rows with a string "test" to be added in the front of the existing value.
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