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How to get subarray from array?
...id; most especially, monkey-patching the Builtins (Object, Array, Promise, etc) is very naughty. See the famous example of MooTools forcing a rename of the proposed native Array.prototype.contains to Array.prototype.includes.
– daemonexmachina
Jan 8 '19 at 10:2...
Forms authentication timeout vs sessionState timeout
...in memory (or whatever backing store is being used, SQL Server, OutOfProc, etc) for a particular session. For example, if you put an object in Session using the value in your example, this data will be removed after 30 minutes. The user may still be authenticated but the data in the Session may no l...
How to define a custom ORDER BY order in mySQL
...hros in the table definition, you specify it as an ENUM instead of VARCHAR etc. Internally MySQL stores the ENUM options in a specific order and indexes them, and so when ordering by an ENUM column specifically it will use that internal index instead of the string values ( unless CAST() is used to ...
How does @synchronized lock/unlock in Objective-C?
... is handled at runtime. This allows for optimization on uncontended locks, etc.
– Quinn Taylor
Aug 1 '09 at 1:18
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What is the shortest function for reading a cookie by name in JavaScript?
...eliable and more performant than the current best-voted answer:
function getCookieValue(a) {
var b = document.cookie.match('(^|;)\\s*' + a + '\\s*=\\s*([^;]+)');
return b ? b.pop() : '';
}
A performance comparison of various approaches is shown here:
http://jsperf.com/get-cookie-value-re...
SQL select only rows with max value on a column [duplicate]
...nce friendly, however your mileage may vary (RDBMS, DB Structure, Indexes, etc.). So when you pick one approach over the other, benchmark. And make sure you pick the one which make most of sense to you.
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Input and output numpy arrays to h5py
...simple binary formats provided by numpy natively such as np.save, np.savez etc:
http://docs.scipy.org/doc/numpy/reference/routines.io.html
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What does a tilde do when it precedes an expression?
...needed ++ and -- in a while because of primitive methods like map, forEach etc. My point is more about why they didn't also consider ~ excessively tricky when whatever standard used includes increment and decrement operators. To forbid something so CIS101 doesn't make any sense.
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Creating a config file in PHP
... comment - none of the parsing mechanisms would be the fastest (ini, json, etc) - but they're also not the parts of your application that you'd really need to focus on optimizing since the speed difference would be negligible on such small files.
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Hibernate Annotations - Which is better, field or property access?
...an use to modify the document - a set of buttons, tools, keyboard commands etc. However, when you choose to persist (Save) that document, it saves the internal state, not the set of keypresses and mouse clicks used to generate it.
Saving the internal state of the object DOES NOT break encapsulatio...