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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...alse';
echo ' ' . (empty($v) ? 'true' : 'false');
echo "\n";
});
Test the above snippet in the 3v4l.org online PHP editor
Although PHP does not require a variable declaration, it does recommend it in order to avoid some security vulnerabilities or bugs where one would forget to give a val...
The developers of this app have not set up this app properly for Facebook Login?
... make sure that any users that will be using the facebook app are added as testers/develoers/admins etc. (under the "roles" menu). That way you can keep the app private during development but still test out the functionality. Then just flick the switch when you go live.
– Mikey...
Use of 'const' for function parameters
...
// Example of const only in definition, not declaration
class foo { void test(int *pi); };
void foo::test(int * const pi) { }
However, the converse is true... you can put a spurious const only in the declaration and ignore it in the definition. This only makes superfluous const in an API more o...
Play audio with Python
...
+1 for playsound. I just tested out a couple solutions here, and this one worked the easiest for me. Unfortunately the pygame solution didn't work for me, during a brief test.
– Trevor Sullivan
Nov 24 '19 at 19:...
How do you get a list of the names of all files present in a directory in Node.js?
...
You can use the fs.readdir or fs.readdirSync methods.
fs.readdir
const testFolder = './tests/';
const fs = require('fs');
fs.readdir(testFolder, (err, files) => {
files.forEach(file => {
console.log(file);
});
});
fs.readdirSync
const testFolder = './tests/';
const fs = require...
What is aria-label and how should I use it?
... ARIA can lead to significantly worse accessibility if not implemented and tested properly. Don't use ARIA just to have some "cool things in the code" which you don't fully understand. Sadly too often ARIA implementations introduce more issues than solutions in terms of accessibility. This is rather...
How to set session timeout in web.config
...te, you've set the session to be abandoned in 1 minute after its idle.
To test this, create a simple aspx page, and write this code in the Page_Load event,
Response.Write(Session.SessionID);
Open a browser and go to this page. A session id will be printed. Wait for a minute to pass, then hit ref...
AngularJS browser autofill workaround by using a directive
... Good point about $pristine. Well, 3 seconds is there just for testing purposes. The "Save Password" dialog seems to work on Safari. That's another issue which I have to investigate.
– lucassp
Feb 19 '13 at 20:28
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Why don't :before and :after pseudo elements work with `img` elements? [duplicate]
...ev.w3.org/html5/markup/syntax.html#void-element // A quick bit of informal testing suggests that you can't add pseudo-elements to input elements either.
– Ben
Sep 13 '12 at 21:47
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How do I fetch a branch on someone else's fork on GitHub? [duplicate]
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@TomNorway I tested it and it works without the .git extension. Do you use GitHub?
– Mateusz Piotrowski
Oct 13 '16 at 17:09
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