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How to create a MySQL hierarchical recursive query
... is only called to make sure this condition is always true, even if the pv string would for some reason yield a falsy value.
All in all, one may find these assumptions too risky to rely on. The documentation warns:
you might get the results you expect, but this is not guaranteed [...] the ord...
How exactly does CMake work?
... a Visual Studio solution.
CMakeCache.txt - This is a persistent key/value string storage which is used to cache value between runs. Values stored in here can be paths to library dependencies or whether an optional component is to be built at all. The list of variables is mostly identical to the one...
Left Align Cells in UICollectionView
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Hey. I'm a little bit confused. Adding space for every string at the start and finish still shows my word in item cell w/o the space I've added. Any idea of how to do it?
– Mohamed Lee
Dec 11 '19 at 11:46
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Bootstrap 3 Collapse show state with Chevron icon
...nic, I made a little changes to make all headers clickable (not only title string and gluphs) and took off underline from link.
To force an icons appear on same line I added h4 at the end of CSS instructions. Here is the modified code:
<div class="panel-group" id="accordion">
<div class=...
How do search engines deal with AngularJS applications?
... page with rendered data and storing it as HTML. Whenever we see the query string ?_escaped_fragment_ in a search request, we can deliver the static HTML snapshot we took of the page instead of the pre-rendered page through only JS. This requires us to have a backend that delivers our pages with con...
What's the $unwind operator in MongoDB?
...nds array produce an output document. Now, in this example, our values are strings. But, regardless of the type of value for the elements in an array, unwind will produce an output document for each one of these values, such that the field in question will have just that element. In the case of fund...
Could someone explain the pros of deleting (or keeping) unused code?
...urprising ways: reflection, dynamically calling routines concatenated from strings, eval, framework magic.
However, if there is a high probability that code will be used in the future, it is easier to add if it's right there along the other code instead of in the version control system. You might n...
How to Implement DOM Data Binding in JavaScript
... being the object that you wish to define a new property for, the second a string resembling the the name of the new property and the last a "descriptor object" providing information on the behavior of the new property.
Two particularly interesting descriptors are get and set. An example would look...
Java “Virtual Machine” vs. Python “Interpreter” parlance?
...using eval and exec, and you can use compile() built-in function to turn a string into bytecode.
– Lie Ryan
Sep 27 '10 at 13:53
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Override Java System.currentTimeMillis for testing time sensitive code
...DateTime zdt = ZonedDateTime.now( clockEarliestXmasThisYear );
instant.toString(): 2016-12-24T10:00:00Z
zdt.toString(): 2016-12-25T00:00+14:00[Pacific/Kiritimati]
See live code in IdeOne.com.
True time, different time zone
You can control which time zone is assigned by the Clock implementation....