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In Flux architecture, how do you manage Store lifecycle?
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In a Flux app there should only be one Dispatcher. All data flows through this central hub. Having a singleton Dispatcher allows it to manage all Stores. This becomes important when you need Store #1 update itself, and then have Store #2 update itself based on both the Acti...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
...s of two numbers:
the modulus (e.g. a 2,048 bit number)
the exponent (usually 65,537)
Using your RSA public key as an example, the two numbers are:
Modulus: 297,056,429,939,040,947,991,047,334,197,581,225,628,107,021,573,849,359,042,679,698,093,131,908,015,712,695,688,944,173,317,630,555,849,7...
How to break nested loops in JavaScript? [duplicate]
...ested loops by moving inner loops to separate functions, it will run marginally slower because of the extra function calls.
– Tim Down
Oct 14 '09 at 10:39
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MISCONF Redis is configured to save RDB snapshots
...rvices.msc, Enter -> Search for Redis then click on restart.
I personally had this issue after upgrading redis with Brew (brew upgrade).
After rebooting the laptop, it immediately worked.
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With MySQL, how can I generate a column containing the record index in a table?
...l l
JOIN (SELECT @curRow := 0) r;
The JOIN (SELECT @curRow := 0) part allows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE league_girl (position int, username varchar(10), score int);
INSERT INTO league_girl VALUES (1, 'a', 10);
INSERT INTO leag...
What are the applications of binary trees?
...ningless - they are not a data structure, but a family of data structures, all with different performance characteristics. While it is true that unbalanced binary trees perform much worse than self-balancing binary trees for searching, there are many binary trees (such as binary tries) for which "b...
Select count(*) from multiple tables
How can I select count(*) from two different tables (call them tab1 and tab2 ) having as result:
18 Answers
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How do I cast a JSON object to a typescript class
I read a JSON object from a remote REST server. This JSON object has all the properties of a typescript class (by design). How do I cast that received JSON object to a type var?
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How can I maintain fragment state when added to the back stack?
... back stack. However, when I return to FragmentA (by pressing back), a totally new FragmentA is created and the state it was in is lost. I get the feeling I'm after the same thing as this question, but I've included a complete code sample to help root out the issue:
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'printf' vs. 'cout' in C++
...letely on operator overloading, so there is no issue with custom formats - all you do is define a subroutine taking std::ostream as the first argument and your type as second. As such, there are no namespace problems - as long you have a class (which isn't limited to one character), you can have wor...