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How do you concatenate Lists in C#?
... old but I came upon this post quickly thinking Concat would be my answer. Union worked great for me. Note, it returns only unique values but knowing that I was getting unique values anyway this solution worked for me.
namespace TestProject
{
public partial class Form1 :Form
{
publ...
What is the leading LINQ for JavaScript library? [closed]
...
I personally find the LINQ/set operations Union, Intersect, Except and Distinct on enumerables in .NET. very useful. There is a jquery plugin called jQuery Array Utilities which provides these methods to be used on arrays.
Code examples:
$.distinct([1, 2, 2, 3])
...
How many levels of pointers can we have?
...eclarators (in any combinations) modifying an
arithmetic, structure, union, or void type in a declaration
The upper limit is implementation specific.
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...
Optimal way to concatenate/aggregate strings
...r,
NameCount
FROM Partitioned
WHERE NameNumber = 1
UNION ALL
SELECT
P.ID,
CAST(C.FullName + ', ' + P.Name AS nvarchar),
P.Name,
P.NameNumber,
P.NameCount
FROM Partitioned AS P
INNER JOIN Concatenated AS C
...
Is there a way to do method overloading in TypeScript?
...ally achieve the same thing with optional, or default parameters - or with union types, or with a bit of object-orientation.
The Actual Question
The actual question asks for an overload of:
someMethod(stringParameter: string): void {
someMethod(numberParameter: number, stringParameter: string): ...
What's the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN? [duplicate]
...have a problem with the whole concept: those are visual representations of union, intersect, except, etc. They have no visual representation of projection therefore cannot be joins. I think it will confuse more than benefit when the context is joins.
– onedaywhen
...
Multi-statement Table Valued Function vs Inline Table Valued Function
... you pass as a "Company Number". Normally, you could create a view with a union all then filter by company number but I found that sometimes sql server pulls back the entire union and is not smart enough to call the one select. A table function can have logic to choose the source.
...
How do I get SUM function in MySQL to return '0' if no values are found?
...as expected_sum,
COALESCE(SUM(val), 0) as actual_sum
FROM foo
UNION ALL
SELECT 'bar' as table_name,
'all non-null' as description,
21 as expected_sum,
COALESCE(SUM(val), 0) as actual_sum
FROM bar
UNION ALL
S...
Type definition in object literal in TypeScript
...ally need a type that you can be lazily initialized: Mark it is a nullable union type (null or Type). The type system will prevent you from using it without first ensuring it has a value.
In tsconfig.json, make sure you enable strict null checks:
"strictNullChecks": true
Then use this pattern an...
TypeScript function overloading
... TypeScript 1.4, you can typically remove the need for an overload using a union type. The above example can be better expressed using:
myMethod(a: string | number, b?: string) {
alert(a.toString());
}
The type of a is "either string or number".
...