大约有 15,208 项符合查询结果（耗时：0.0375秒） [XML]
Should I always return IEnumerable instead of IList?
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@Jon FDG recommend using Collection<T> or ReadOnlyCollection<T> as a return value for collection types see my answer.
– Sam Saffron
Jul 3 '09 at 5:51
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Regex Pattern to Match, Excluding when… / Except between
...four very simple expressions.
For flavors that support free-spacing, this reads particularly well.
(?mx)
### s1: Match line that ends with a period ###
^.*\.$
| ### OR s2: Match anything between parentheses ###
\([^\)]*\)
| ### OR s3: Match any if(...//endif block ###
if\(.*?//e...
Java's Interface and Haskell's type class: differences and similarities?
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I've read the above answers. I feel I can answer slightly more clearly:
A Haskell "type class" and a Java/C# "interface" or a Scala "trait" are basically analogous. There is no conceptual distinction between them but there are im...
Plain Old CLR Object vs Data Transfer Object
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It's probably redundant for me to contribute since I already stated my position in my blog article, but the final paragraph of that article kind of sums things up:
So, in conclusion, learn to love the POCO, and make sure you don’t spread any misinformation about it being the...
Java ArrayList replace at specific index
...se it. ;). In SO, answer should be always according to question, so please read the question first. And what is the problem if it returns the previous value, if you want that value then you can use else leave it. It is replacing the old value and that is it.
– Android Killer
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Mounting multiple volumes on a docker container?
...rget,target=/app \
--mount type=bind,source="$(pwd)"/target,target=/app2,readonly,bind-propagation=rslave \
nginx:latest
Original older answer should still work; just trying to keep the answer aligned to current best known method.
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Sending HTML email using Python
...message, in this case # the HTML message, is best and preferred. I wish i read this 2hrs ago
– dwkd
Jul 4 '15 at 21:44
1
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Current time in microseconds in java
...ay be inaccurate, just approximations, adrift from actual time as might be read from an atomic clock. In other words, just because you see a bunch of digits to the right of the decimal mark does not mean you can trust the elapsed time between such readings to be true to that minute degree.
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iOS: Use a boolean in NSUserDefaults
...@"logged_in"];
[[NSUserDefaults standardUserDefaults] synchronize];
and read it by using this code:
if(![[NSUserDefaults standardUserDefaults] boolForKey:@"logged_in"]) {
[self displayLogin];
} else {
[self displayMainScreen];
}
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Is it secure to store passwords as environment variables (rather than as plain text) in config files
...aintext files, but likely are worse. With plaintext files you can set the read permissions on the files/directories to protect them. IIRC for environment variables, they live in the memory space for the shell process, so an enterprising cracker could scan that space looking for them.
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