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Purge Kafka Topic
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Temporarily update the retention time on the topic to one second:
kafka-topics.sh --zookeeper <zkhost>:2181 --alter --topic <topic name> --config retention.ms=1000
And in newer Kafka releases, you can also do it with kafka-configs --entity-type ...
Is there a method that calculates a factorial in Java?
I didn't find it, yet. Did I miss something?
I know a factorial method is a common example program for beginners. But wouldn't it be useful to have a standard implementation for this one to reuse?
I could use such a method with standard types (Eg. int, long...) and with BigInteger / BigDecimal, too...
Equivalent of Math.Min & Math.Max for Dates?
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There is no overload for DateTime values, but you can get the long value Ticks that is what the values contain, compare them and then create a new DateTime value from the result:
new DateTime(Math.Min(Date1.Ticks, Date2.Ticks))
(Note that the DateTime s...
jquery save json data object in cookie
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JSON is not allowed in cookies for Opera since ancient times my.opera.com/community/forums/… I also have this error. Even though if @cookie@ plugin use @encodeURIComponent@, pbug shouldn't appear.
– kirilloid
Jan 22 '13 at 10:33
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Testing whether a value is odd or even
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@Steve Yes, but JS has some special issues when value is not a number, or even if it's a number. Ex.: 0.1%2, NaN%2, []%2, etc. What you wrote in the answer, he already knows it.
– Alin Purcaru
Jun 2 '11 at 7:29
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How to delete a module in Android Studio
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Getting indices of True values in a boolean list
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Use enumerate, list.index returns the index of first match found.
>>> t = [False, False, False, False, True, True, False, True, False, False, False, False, False, False, False, False]
>>> [i for i, x in enumerate(...
How to “inverse match” with regex?
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. doesn't match \n by default (some languages [eg Perl] allow you to switch on that behaviour, but by default . matches everything BUT \n).
– Dan
Oct 2 '08 at 20:36
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Professional jQuery based Combobox control? [closed]
...hing I have seen is the jquery.combobox, but it doesn't really look like something I'd really want to use in my web applications. I think there are some usability issues with this control, but as a user I don't think I'd know to start typing for the dropdownlist to turn into a textbox.
I much prefe...
RegEx for Javascript to allow only alphanumeric
I need to find a reg ex that only allows alphanumeric. So far, everyone I try only works if the string is alphanumeric, meaning contains both a letter and a number. I just want one what would allow either and not require both.
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