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Does JavaScript have “Short-circuit” evaluation?
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So short circuit it is the standard in JS?
– GibboK
Sep 23 '12 at 17:42
1
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if/else in a list comprehension
...x in row]
In general,
[f(x) if condition else g(x) for x in sequence]
And, for list comprehensions with if conditions only,
[f(x) for x in sequence if condition]
Note that this actually uses a different language construct, a conditional expression, which itself is not part of the comprehensi...
How to get height of entire document with JavaScript?
...compatibility nightmare because, although all browsers expose clientHeight and scrollHeight properties, they don't all agree how the values are calculated.
There used to be a complex best-practice formula around for how you tested for correct height/width. This involved using document.documentEleme...
How do you run a Python script as a service in Windows?
...e which provides a higher level interface for operations on these objects, and the other programs to access the objects through that service.
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How does TransactionScope roll back transactions?
...gration test where I will be inserting a number of objects into a database and then checking to make sure whether my method retrieves those objects.
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IList vs IEnumerable for Collections on Entities
...ant to surface the Lines property as only an IEnumerable<OrderLine>, and provide Add(OrderLine) and Remove(OrderLine) methods which can handle that validation.
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'0000-00-00 00:00:00' can not be represented as java.sql.Timestamp error
...read use with other languages.
So, if I "just change the database", thousands of lines of PHP code will break.
Java programmers need to accept the MySQL zero-date and they need to put a zero date back into the database, when other languages rely on this "feature".
A programmer connecting to MySQ...
Convert SVG image to PNG with PHP
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That's funny you asked this, I just did this recently for my work's site and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*loop to color eac...
using jquery $.ajax to call a PHP function
...ript. What I want to do is basically put that PHP script inside a function and call the PHP function from javascript.
6 An...
How to test if string exists in file with Bash?
...e.
-q, --quiet, --silent
Quiet; do not write anything to standard output. Exit immediately with zero status if any match is found, even if an error was detected. Also see the -s or --no-messages option.
Error handling
As rightfully pointed out in the comments, the above approach ...