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When to use a key/value store such as Redis instead/along side of a SQL database?
...hich contains also use cases. Since redis is rather memory oriented it's really good for frequently updated real-time data, such as session store, state database, statistics, caching and its advanced data structures offers versatility to many other scenarios.
Redis, however, isn't NoSQL replacement...
How do I shutdown, restart, or log off Windows via a bat file?
... -l — Logs off.
shutdown -h — Hibernates.
Note: There is a common pitfall wherein users think -h means "help" (which it does for every other command-line program... except shutdown.exe, where it means "hibernate"). They then run shutdown -h and accidentally turn off their computers. Watch out f...
Create an enum with string values
...vide a reliable and safe experience for named string values (which is partially what enums are used for).
type Options = "hello" | "world";
var foo: Options;
foo = "hello"; // Okay
foo = "asdf"; // Error!
More : https://www.typescriptlang.org/docs/handbook/advanced-types.html#string-literal-typ...
How to get the browser language using JavaScript [duplicate]
...hrome's navigator.language is always the language configuration of the installation of windows, rather than the language configuration of the browser.
– kybernetikos
Jul 31 '13 at 14:04
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How to calculate the intersection of two sets? [duplicate]
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Use the retainAll() method of Set:
Set<String> s1;
Set<String> s2;
s1.retainAll(s2); // s1 now contains only elements in both sets
If you want to preserve the sets, create a new set to hold the intersection:
Set<String&g...
Most efficient way to prepend a value to an array
...g-O performance if you are ok with modifying the array in-place. If you really can't mutate the original array then you would do something like the below snippet, which doesn't seem to be appreciably faster than your solution:
a.slice().unshift(0); // Use "slice" to avoid mutating "a".
[Edit 2]
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How to apply CSS to iframe?
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Does this actually work cross-domain? I don't think it would.
– Simon East
Nov 4 '11 at 0:52
89
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How to prompt for user input and read command-line arguments [closed]
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You don't have to use str() in print concatenation since all entered data will be str(ing) type by default (even numbers).
– Goujon
Nov 8 '17 at 11:50
add a ...
When monkey patching an instance method, can you call the overridden method from the new implementat
Say I am monkey patching a method in a class, how could I call the overridden method from the overriding method? I.e. Something a bit like super
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Is there any way in C# to override a class method with an extension method?
...ng virtual I am simply clarifying what it means to be polymorphic. In virtually all uses of GetHashCode, the concrete type is unknown - so polymorphism is in play. As such, extension methods wouldn't help even if they took priority in the regular compiler. What the OP really wants is monkey-patching...