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Objective-C: difference between id and void *
...ng called has not been declared in any of the @interface declarations seen by the compiler.
Thus, one should never refer to an object as a void *. Similarly, one should avoid using an id typed variable to refer to an object. Use the most specific class typed reference you can. Even NSObject *...
Set custom HTML5 required field validation message
.../603003
* @license MIT 2013-2015 ComFreek
* @license[dual licensed] CC BY-SA 3.0 2013-2015 ComFreek
* You MUST retain this license header!
*/
(function (exports) {
function valOrFunction(val, ctx, args) {
if (typeof val == "function") {
return val.apply(ctx, args);
...
How do I negate a condition in PowerShell?
...
@DavidA.Gray Ruby has unless as keyword (just like if) but most user from other languages hate it.
– Franklin Yu
Nov 27 '18 at 5:09
...
Does svn have a `revert-all` command?
... imageUploader: {
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Save file to specific folder with curl command
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
What is the difference between IQueryable and IEnumerable?
...bject as a runtime-traversable abstract syntax tree that can be understood by the given query provider (for the most part, you can't give a LINQ to SQL expression to a LINQ to Entities provider without an exception being thrown).
The expression can simply be a constant expression of the object itse...
In Clojure, when should I use a vector over a list, and the other way around?
...
Once again, it seems I've answered my own question by getting impatient and asking it in #clojure on Freenode. Good thing answering your own questions is encouraged on Stackoverflow.com :D
I had a quick discussion with Rich Hickey, and here is the gist of it.
[12:21] <Ra...
The difference between Classes, Objects, and Instances
...nterested, try and get hold of a copy of "Types and Programming Languages" by Benjamin C. Pierce.)
– Stephen C
Apr 7 '15 at 15:32
...
How can I get name of element with jQuery?
...is a distinction between attributes and properties that should be observed by using the proper method.
– user1106925
Jan 13 '12 at 15:18
...
What's the difference between using “let” and “var”?
...
Scoping rules
Main difference is scoping rules. Variables declared by var keyword are scoped to the immediate function body (hence the function scope) while let variables are scoped to the immediate enclosing block denoted by { } (hence the block scope).
function run() {
var foo = "Foo";
...