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Core Data: Quickest way to delete all instances of an entity
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iOS 9 and later:
iOS 9 added a new class called NSBatchDeleteRequest that allows you to easily delete objects matching a predicate without having to load them all in to memory. Here's how you'd use it:
Swift 5
let fetchRequest: NSFetchRequest<NSFetchR...
Why is access to the path denied?
...razyTimCrazyTim
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80
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How to detect internet speed in JavaScript?
...easureConnectionSpeed() {
var startTime, endTime;
var download = new Image();
download.onload = function () {
endTime = (new Date()).getTime();
showResults();
}
download.onerror = function (err, msg) {
ShowProgressMessage("Invalid image, or e...
When to use .First and when to use .FirstOrDefault with LINQ?
... @driis - I'd imagine we can use the mantra of the exceptional exception guideline when choosing between First and FirstOrDefault. Thanks for the clear answer.
– Metro Smurf
Jun 21 '09 at 21:21
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How can I remove the search bar and footer added by the jQuery DataTables plugin?
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answered Feb 26 '10 at 11:51
paja01paja01
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What is the HEAD in git?
...to reference, or point to, a specific commit in the repository. As we make new commits the pointer is going to change or move to point to a new commit. HEAD always points to the tip of the current branch in our repository. Now, this has to do with our repository, not our staging index, or our workin...
How do you do a limit query in JPQL or HQL?
...tMaxResults().
So if it worked in Hibernate 2, it seems that was by coincidence, rather than by design. I think this was because the Hibernate 2 HQL parser would replace the bits of the query that it recognised as HQL, and leave the rest as it was, so you could sneak in some native SQL. Hibernate ...
Windows 8.1 / Windows 10 breaks my ASP.NET / IIS : “Service unavailable”
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Edit: 8/30/16 : A similar but unrelated error can occur if you have the 'new' .NET core installed and update to Win 10 Anniversary edition. See here: https://github.com/aspnet/Home/issues/1583 - Running a repair on VS 2015 Tooling Preview should fix it. Wanted to add it here since the errors are v...
Check if checkbox is checked with jQuery
How can I check if a checkbox in a checkbox array is checked using the id of the checkbox array?
23 Answers
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Unbound classpath container in Eclipse
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mmoore
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answered Jan 18 '10 at 2:12
andi5andi5
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