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Why isn't there a Guid.IsNullOrEmpty() method
...e, so a variable of type Guid can't be null to start with. If you want to know if it's the same as the empty guid, you can just use:
if (guid == Guid.Empty)
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What is a lambda (function)?
... = x−1 means a function substituting the symbols x−1 for the symbol y. Now imagine applying λ y to each term in the first equation. If a term is y then perform the substitution; otherwise do nothing. If you do this out on paper you'll see how applying that λ y will make the first equation solv...
Generate random string/characters in JavaScript
...at I invented the solution but I've been using it in my projects for years now. And it has nothing to do with the comment you mentioned. And I am quite sure that in SO what matters is the most useful information in the right place and even if it already exists in some other place, too. Luckily, it s...
How to turn on line numbers in IDLE?
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Believe it or not, I really like Microsoft's VS Code now. It's a great light weight IDE with really good python plugins. It also works across mac/linux/windows. What a strange (good) world we live in where Microsoft is going open source.
– Davos
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Tablet or Phone - Android
...t want to check whether the device is a tablet or a phone but you want to know about the features of the device,
Most of the time, the difference between a tablet and a phone is the screen size which is why you want to use different layout files. These files are stored in the res/layout-<qualifi...
How to make JavaScript execute after page load?
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Good solution, but now outdated: developer.mozilla.org/en-US/docs/Web/API/EventTarget/…
– Renan
Nov 26 '17 at 5:25
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How do I disable a jquery-ui draggable?
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Which is to say that the draggable() docs are (now?) here, with nickb's link, above, going to the demo. ;)
– ruffin
Jan 15 '13 at 21:20
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Print array to a file
...' => array ('x', 'y', 'z'));
$results = print_r($b, true); // $results now contains output from print_r
You can then save $results with file_put_contents. Or return it directly when writing to file:
file_put_contents('filename.txt', print_r($b, true));
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PHP DOMDocument loadHTML not encoding UTF-8 correctly
...ing="utf-8" ?>' . $profile);
echo $dom->saveHTML();
If you cannot know if the string will contain such a declaration already, there's a workaround in SmartDOMDocument which should help you:
$profile = '<p>イリノイ州シカゴにて、アイルランド系の家庭に、9</p>...
Django import error - no module named django.conf.urls.defaults
... on as after I managed to start Graphite some of its features didn't work. Now they work for me but YMMV.)
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