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Select random row from a sqlite table
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Have a look at Selecting a Random Row from an SQLite Table
SELECT * FROM table ORDER BY RANDOM() LIMIT 1;
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Start may not be called on a promise-style task. exception is coming
... a task that you create by calling its constructor, and you shouldn't even do that unless you have a compelling reason to not start the task when you create it; if you want it started right away you should use Task.Run or Task.Factory.StartNew to both create and start a new Task.
So, now we know to...
Autocomplete applying value not label to textbox
...nt.preventDefault() to prevent this from occurring. I would also recommend doing something similar for the focus event to prevent ui.item.value from being placed in the input as the user hovers over choices:
$("#customer-search").autocomplete({
/* snip */
select: function(event, ui) {
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UIView Infinite 360 degree rotation animation?
...ers and new projects, Apple now warns users away from these methods in the Docs & @Nate code uses the block based animations that Apple now prefers
– PaulWoodIII
May 15 '13 at 4:46
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ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...ramework or ASP.NET Core) works. It uses a Key Derivation Function with random salt to produce the hash. The salt is included as part of the output of the KDF. Thus, each time you "hash" the same password you will get different hashes. To verify the hash the output is split back to the salt and the ...
printf with std::string?
... understanding is that string is a member of the std namespace, so why does the following occur?
7 Answers
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ruby system command check exit code
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From the documentation:
system returns true if the command gives zero exit status, false for
non zero exit status. Returns nil if command execution fails.
system("unknown command") #=> nil
system("echo foo") ...
Seedable JavaScript random number generator
The JavaScript Math.random() function returns a random value between 0 and 1, automatically seeded based on the current time (similar to Java I believe). However, I don't think there's any way to set you own seed for it.
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Determine if a sequence contains all elements of another sequence using Linq [duplicate]
...n even for methods with lambda expressions, such as OrderBy. Now, what you do inside those lambda expressions could be highly inefficient, but that is on you :-) I like the readability of yours too; I am considering adding your extension method with the Except implementation to get the best of both ...
Loading and parsing a JSON file with multiple JSON objects
...y before moving on to the next, saving memory in the process. You probably don't want to append each result to one list and then process everything if your file is really big.
If you have a file containing individual JSON objects with delimiters in-between, use How do I use the 'json' module to rea...