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How do you implement an async action delegate method?
...rn Task when it doesn't have a return value. If it uses the async keyword, then the actual Task instance will be created by a state machine, not the function directly.
– Stephen Cleary
Dec 19 '19 at 13:57
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How do I truncate a .NET string?
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Because performance testing is fun: (using linqpad extension methods)
var val = string.Concat(Enumerable.Range(0, 50).Select(i => i % 10));
foreach(var limit in new[] { 10, 25, 44, 64 })
new Perf<string> {
{ "newstring" + limit, n =&...
Why would a JavaScript variable start with a dollar sign? [duplicate]
...des email, emailElement, and emailJQ, I kept trying other variations too.
Then I noticed a common pattern:
var email = $("#email");
var emailJQ = $(email);
Since JavaScript treats $ as simply another letter for names, and since I always got a jQuery object back from a $(whatever) call, the patte...
IIS: Idle Timeout vs Recycle
...you have 1 user every 20 minutes lets say. So a website that get his less then 1 time in 20 minutes actually you would want to increase this value as the website has to load up again from scratch for each user. but if you set this to 0 over a long time, any memory leaks in code could over a certai...
Swapping column values in MySQL
...ues are taken from the old row and assigned to a new copy of the same row, then the old row is replaced. You do not have to resort to using a temporary table, a temporary column, or other swap tricks.
@D4V360: I see. That is shocking and unexpected. I use PostgreSQL and my answer works correctly th...
Email validation using jQuery
...true. I'd simply the function down to the declaration of the emailReg var then this: return ( $email.length > 0 && emailReg.test($email))
– Diziet
Jan 9 '14 at 16:06
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How to avoid long nesting of asynchronous functions in Node.js
...up a complicated and deeply nested function into separate named functions, then that is usually a good idea. For the times when it makes sense to do it inside a single function, you can use one of the many node.js async libraries available. People have come up with lots of different ways to tackle t...
How do you obtain a Drawable object from a resource id in android package?
...get drawable and colors because if any thing change or deprecate in future then you no need to change everywhere in your project.You just change in this method
object ResourceUtils {
fun getColor(context: Context, color: Int): Int {
return ResourcesCompat.getColor(context.getResources(...
Why should I use IHttpActionResult instead of HttpResponseMessage?
...oable - every object creation does not merit a proper factory pattern. But then IMHO it depends on how you want to model your classes. Do you want to have logic to create different types of responses all crammed into a class in the form of multiple static methods or have different classes based on a...
What is a practical use for a closure in JavaScript?
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Ah, if this is a closure, then I have used closures without knowing it! I often put functions inside another like that, and then expose any I need public by returning an object literal like in your example.
– alex
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