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python: how to send mail with TO, CC and BCC?
...d messages not only TO specific mailboxes, but CC and BCC them as well. It does not look like smtplib supports CC-ing and BCC-ing while sending emails.
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Regex for string contains?
...or simply checking if a string contains a certain word (e.g. 'Test')? I've done some googling but can't get a straight example of such a regex. This is for a build script but has no bearing to any particular programming language.
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Match whole string
...ar i = 0; i < strs.length; i++) {
if (strs[i] == 'abc') {
//do something
}
else {
//do something else
}
}
While you could use
if (str[i].match(/^abc$/g)) {
//do something
}
It would be considerably more resource-intensive. For me, a general rule of thum...
ManyRelatedManager object is not iterable
Trying to do this:
6 Answers
6
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Why not use HTTPS for everything?
...may not support SSL.
SSL may decrease performance somewhat. If users are downloading large, public files, there may be a system burden to encrypt these each time.
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Why java.util.Optional is not Serializable, how to serialize the object with such fields
...t value, throw an exception, or apply some other policy. This is typically done by chaining fluent method calls off the end of a stream pipeline (or other methods) that return Optional values.
It was never intended for Optional to be used other ways, such as for optional method arguments or to be s...
Using LIMIT within GROUP BY to get N results per group?
...also want to retrieve year and other columns from the subquery, How can we do that?
– MaNn
Jul 17 '19 at 13:57
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Useful example of a shutdown hook in Java?
...on takes reasonable steps to be robust, and part of that involves shutting down gracefully. I am reading about shutdown hooks and I don't actually get how to make use of them in practice.
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Java concurrency: Countdown latch vs Cyclic barrier
...n be used again.
For simple use cases - services starting etc... a CountdownLatch is fine. A CyclicBarrier is useful for more complex co-ordination tasks. An example of such a thing would be parallel computation - where multiple subtasks are involved in the computation - kind of like MapReduce....
Generate an integer that is not among four billion given ones
...ut file. At least one of the buckets will have be hit less than 216 times. Do a second pass to find of which of the possible numbers in that bucket are used already.
If it means more than 32 bits, but still of bounded size: Do as above, ignoring all input numbers that happen to fall outside the (si...