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iOS White to Transparent Gradient Layer is Gray
...I accidentally used UIColor.white.withAlphaComponent(0) and was scratching my head for an hour wondering why it was still gray.
– SnoopyProtocol
Jan 28 '19 at 3:23
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Is it a good practice to use try-except-else in Python?
...-except-else style will produce more reliable code in these cases.
"It my understanding that exceptions are not errors, they should only
be used for exceptional conditions"
In some other languages, that rule reflects their cultural norms as reflected in their libraries. The "rule" is also ba...
How can I select random files from a directory in bash?
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You are right. My previous solution didn't work for file names containing newlines and probably breaks on others with certain special characters, too. I've updated my answer to use null-termination instead of newlines.
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Difference between File.separator and slash in paths
...t documented, but in the absense of finding an official reference (because my memory isn't perfect), I'd stick with using File.separator because you know that will work.
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Original purpose of ? [closed]
...id
For example
<?php
if(isset($_POST['delete_action'])) {
mysqli_query($connection, "DELETE FROM table_name
WHERE record_id = ".$_POST['row_to_be_deleted']);
//Here is where hidden field value is used
}
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Best way to remove an event handler in jQuery?
...red method is using the on()/off() functions. The below would now be,
$('#myimage').click(function() { return false; }); // Adds another click event
$('#myimage').off('click');
$('#myimage').on('click.mynamespace', function() { /* Do stuff */ });
$('#myimage').off('click.mynamespace');
jQuery &...
Determine font color based on background color
..."perceptive luminance" - it really looks better! Already implemented it in my software, looks great.
Edit 2
@WebSeed provided a great working example of this algorithm: http://codepen.io/WebSeed/full/pvgqEq/
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How to load an ImageView by URL in Android? [closed]
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I wrote a class to handle this, as it seems to be a recurring need in my various projects:
https://github.com/koush/UrlImageViewHelper
UrlImageViewHelper will fill an
ImageView with an image that is found
at a URL.
The sample will do a Google Image
Search and load/show the resul...
JavaScript property access: dot notation vs. brackets?
...ws the use of characters that can't be used with dot notation:
var foo = myForm.foo[]; // incorrect syntax
var foo = myForm["foo[]"]; // correct syntax
including non-ASCII (UTF-8) characters, as in myForm["ダ"] (more examples).
Secondly, square bracket notation is useful when dealing with
pr...
Regex select all text between tags
...erformed this search in Sublime Text so I did not have to use modifiers in my regex.
Javascript does not support lookbehind
The above example should work fine with languages such as PHP, Perl, Java ...
Javascript, however, does not support lookbehind so we have to forget about using (?<=(<pr...