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Does Redis persist data?
...means that it will do a complete copy of whats in memory at some points in time (e.g. every full hour). When you lose power between two snapshots, you will lose the data from the time between the last snapshot and the crash (doesn't have to be a power outage..). Redis trades data safety versus perfo...
Can I set null as the default value for a @Value in Spring?
I'm currently using the @Value Spring 3.1.x annotation like this:
5 Answers
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How to rename items in values() in Django?
I want to do pretty much the same like in this ticket at djangoproject.com , but with some additonal formatting. From this query
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Git asks for username every time I push
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Don't forget to set the timeout, default is 15min - Set the value to 30 million to have about 1 year. Found here : stackoverflow.com/a/35942890/1579667
– Benj
Jul 7 '17 at 8:58
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How do I avoid capturing self in blocks when implementing an API?
... working on converting it to ARC in Xcode 4.2. One of the pre-check warnings involves capturing self strongly in a block leading to a retain cycle. I've made a simple code sample to illustrate the issue. I believe I understand what this means but I'm not sure the "correct" or recommended way to im...
Why are unnamed namespaces used and what are their benefits?
...that can exist in multiple translation units, and they won't clash at link time. The effect is almost identical to using the static keyword used in C which you can put in in the declaration of identifiers. Unnamed namespaces are a superior alternative, being able to even make a type translation unit...
Convert a float64 to an int in Go
How does one convert a float64 to an int in Go? I know the strconv package can be used to convert anything to or from a string, but not between data types where one isn't a string. I know I can use fmt.Sprintf to convert anything to a string, and then strconv it to the data type I need, but th...
Difference between CR LF, LF and CR line break types?
...e same line). CR+LF was doing both, i.e. preparing to type a new line. As time went by the physical semantics of the codes were not applicable, and as memory and floppy disk space were at a premium, some OS designers decided to only use one of the characters, they just didn't communicate very well ...
List of lists changes reflected across sublists unexpectedly
... to do it is
[[1]*4 for _ in range(3)]
which will reevaluate [1]*4 each time instead of evaluating it once and making 3 references to 1 list.
You might wonder why * can't make independent objects the way the list comprehension does. That's because the multiplication operator * operates on obje...
How to save a BufferedImage as a File
I am using the imgscalr Java library to resize an image .
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