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Array extension to remove object by value
...er idiomatic, is even worse – people will come, read the answer, think a free function is the right way to solve it since it’s a highly rated answer. Pretty ugly scenario. Will post to meta.
– Airspeed Velocity
Jul 2 '15 at 11:21
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C++ new int[0] — will it allocate memory?
...ap guards before and after the zone given by the allocator, insertion into freelists or other complex horrible structures. Freeing it means doing the backward bookkeeping.
– v.oddou
Jun 13 '14 at 12:18
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Split a string by a delimiter in python
...on). I think the question (and answers) are more useful this way, but feel free to rollback all the edits if you disagree.
– Aran-Fey
Oct 9 '18 at 14:55
add a comment
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What do parentheses surrounding an object/function/class declaration mean? [duplicate]
...d recommend putting a ; before the opening parenthesis: I write semi-colon free code and lines starting with a ( may be parsed as expression continued from the previous line.
– user166390
Oct 17 '10 at 20:36
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MySQL “Group By” and “Order By”
...olumn not named in the GROUP BY are the same for each group. The server is free to choose any value from each group, so unless they are the same, the values chosen are indeterminate."
As of 5.7.5 ONLY_FULL_GROUP_BY is enabled by default so non-aggregate columns cause query errors (ER_WRONG_FIELD_WIT...
Determine if a function exists in bash
...obvious answer.
Edit: Below, the -f option is superfluous with BASH, feel free to leave it out. Personally, I have trouble remembering which option does which, so I just use both. -f shows functions, and -F shows function names.
#!/bin/sh
function_exists() {
declare -f -F $1 > /dev/null
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Create a GUID in Java
...ators for random-based and name-based UUIDs, compliant with RFC-4122. Feel free to use and share.
RANDOM-BASED (v4)
This utility class that generates random-based UUIDs:
package your.package.name;
import java.security.SecureRandom;
import java.util.Random;
import java.util.UUID;
/**
* Utility cla...
Why Java needs Serializable interface?
...things serializable" agenda in mind. Its an example of some one wanting to free whell and not heed the security and design lessons that have already been learned in the past.
– gbtimmon
Jul 9 '12 at 17:30
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How to atomically delete keys matching a pattern using Redis
...m.
EDIT: Per Kikito's comment below, if you have more keys to delete than free memory in your Redis server, you'll run into the "too many elements to unpack" error. In that case, do:
for _,k in ipairs(redis.call('keys', ARGV[1])) do
redis.call('del', k)
end
As Kikito suggested.
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How does OpenID authentication work?
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What is OpenID?
OpenID is an open, decentralized, free framework for user-centric digital identity. OpenID takes advantage of already existing internet technology (URI, HTTP, SSL, Diffie-Hellman) and realizes that people are already creating identities for themselves whether...