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How can I implement an Access Control List in my Web MVC application?
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Amazon products API - Looking for basic overview and information
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Postgresql GROUP_CONCAT equivalent?
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Note that the syntax also allows you to specify the order of values in the string (or array, using array_agg) e.g. string_agg(some_column, ',' ORDER BY some_column) or even string_agg(surname || ', ' || forename, '; ' ORDER BY surname, forename)
– IMSoP
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Error handling with node.js streams
...ansform stream mechanics and calling its callback done with an argument in order to propagate the error:
var transformStream1 = new stream.Transform(/*{objectMode: true}*/);
transformStream1.prototype._transform = function (chunk, encoding, done) {
//var stream = this;
try {
// Do your tr...
Do while loop in SQL Server 2008
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This seems like a copy-paste-reorder from stackoverflow.com/a/46362450/8239061.
– SecretAgentMan
Jul 11 '19 at 16:23
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How can I pop-up a print dialog box using Javascript?
...ng this in a Blazor app (razor)...
You will need to inject IJSRuntime, in order to perform JSInterop (running javascript functions from C#)
IN YOUR RAZOR PAGE:
@inject IJSRuntime JSRuntime
Once you have that injected, create a button with a click event that calls a C# method:
<MatFAB Icon...
MySQL, update multiple tables with one query
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Take the case of two tables, Books and Orders. In case, we increase the number of books in a particular order with Order.ID = 1002 in Orders table then we also need to reduce that the total number of books available in our stock by the same number in Books table.
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Best way to change the background color for an NSView
... layer-backed views you should never interact directly with the layer. The order of when setWantsLayer: and setLayer: is called is relevant.
– Stephan
Sep 14 '13 at 7:59
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Factors in R: more than an annoyance?
...y they are useful because model fitting packages like lme4 use factors and ordered factors to differentially fit models and determine the type of contrasts to use. And graphing packages also use them to group by. ggplot and most model fitting functions coerce character vectors to factors, so the res...
Sorting a vector of custom objects
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Edit2: As Kappa suggests you can also sort the vector in the descending order by overloading a > operator and changing call of sort a bit:
struct MyStruct
{
int key;
std::string stringValue;
MyStruct(int k, const std::string& s) : key(k), stringValue(s) {}
bool operator...