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What does 'predicate' mean in the context of computer science? [duplicate]
Specifically I've seen it used in the context of text filtering. As if "predicate" == "filter criteria".
7 Answers
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How can I use redis with Django?
...This is usually done by setting a TTL for the key: redis.io/commands/ttl . If the key expires, you must go to the DB. So if the key is in redis, then you use it. Note that the simple implementation of this causes some problems: when a popular key expires you have en.wikipedia.org/wiki/Thundering_her...
Groovy executing shell commands
... @srikanth the waitForProcess() output docs also say "Use this method if you don't care about the standard or error output and just want the process to run silently" - I want the output
– Bob Herrmann
Aug 12 '16 at 16:32
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Datatables - Search Box outside datatable
...);" with a capital "D". This is required to be able to call .search on it (if will throw a "function undefined" error otherwise). See: datatables.net/faqs/#api
– Lionel
Mar 30 '15 at 7:28
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What is the relationship between the docker host OS and the container base image OS?
...Ubuntu 12.04 (for example) and then I can install a Fedora container or a different version of ubuntu? (there is an example where the user installed busybox in the container.)
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How to convert byte array to string [duplicate]
...lts of this will vary depending on how the operating system is configured. If you know what encoding the string really is you should use that one instead.
– Wolfgang
Nov 5 '15 at 15:18
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How can I add an item to a SelectList in ASP.net MVC
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What if you actually do insist on the value of 0? If the value is null/an empty string, it can cause problems with model binding.
– Kjensen
Nov 12 '09 at 13:45
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What is the colon operator in Ruby?
...e
So, comparing a string to a string using equal? fails because they're different objects, even if they are equal content. == compares the content, and the equivalent checks with symbols are much faster.
user system total real
string 0.370000 0.000000 0....
Center a position:fixed element
...op and margin-left to the negative half of the div's height and width to shift the center towards the middle of the div.
Thus, provided a <!DOCTYPE html> (standards mode), this should do:
position: fixed;
width: 500px;
height: 200px;
top: 50%;
left: 50%;
margin-top: -100px; /* Negative half ...
SQL Query to concatenate column values from multiple rows in Oracle
... Yes we can do this work!
3 rows selected.
I wrote about this here. And if you follow the link to the OTN-thread you will find some more, including a performance comparison.
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