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Make function wait until element exists
...
A more modern approach to waiting for elements:
while(!document.querySelector(".my-selector")) {
await new Promise(r => setTimeout(r, 500));
}
// now the element is loaded
Note that this code would need to be wrapped in an async fu...
Encrypt and decrypt a string in C#?
...naged%28v=vs.95%29.aspx
Good luck!
public class Crypto
{
//While an app specific salt is not the best practice for
//password based encryption, it's probably safe enough as long as
//it is truly uncommon. Also too much work to alter this answer otherwise.
private static byte[] _sa...
What are named pipes?
...tain the credentials of the thing on the other end etc).
Unix named pipes appear as a special file in the filesystem and can be accessed with normal file IO commands including the shell. Windows ones don't, and need to be opened with a special system call (after which they behave mostly like a norm...
how to make a specific text on TextView BOLD
... This is the only option that will work if you are localizing your app.
– howettl
Apr 6 '17 at 22:51
Its a goo...
Remove all subviews?
When my app gets back to its root view controller, in the viewDidAppear: method I need to remove all subviews.
15 Answers...
Unable to export Apple production push SSL certificate in .p12 format
I am using Urban airship in my application for push notification. So, I need to download the push SSL certificate from Apple developer portal. After downloading, I added that in keychain access. But no private key was created for the certificate. When I tried to right click and export the certificat...
Handle ModelState Validation in ASP.NET Web API
...but same basic principle for XML):
HTTP/1.1 400 Bad Request
Content-Type: application/json; charset=utf-8
(some headers removed here)
["A value is required.","The field First is required.","Some custom errorm essage."]
You can of course construct your error object/list any way you like, for exam...
How should I validate an e-mail address?
...
Don't use a reg-ex.
Apparently the following is a reg-ex that correctly validates most e-mails addresses that conform to RFC 2822, (and will still fail on things like "user@gmail.com.nospam", as will org.apache.commons.validator.routines.EmailVa...
How to export/import PuTTy sessions list?
...egistry Editor Version 5.00" | Out-File putty.reg
"" | Out-File putty.reg -Append
foreach ($reg in $registry) {
"[$reg]" | Out-File putty.reg -Append
foreach ($prop in $reg.property) {
$propval = $reg.GetValue($prop)
if ("".GetType().Equals($propval.GetType())) {
'"' + "$prop" + '...
How do I use .toLocaleTimeString() without displaying seconds?
...me. But never read back dates from UI elements. That should come from your app layer. And always test in Safari. They've been IE6-level jerks about the date object.
– Erik Reppen
Mar 30 '15 at 2:45
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