大约有 45,000 项符合查询结果（耗时：0.0941秒） [XML]
Extending from two classes
...ssed in more detail. First extending from two existing classes would be a bit more problematic and there would be a number of extra hurdles to go through, Second is if interface Foo and Bar both had the same functions, you would need to have an order of precedence. Explicitly extending your class w...
Detect the Internet connection is offline?
...
I recently had the opportunity to work a little bit on offline behaviour. The events are great to use, BUT ios safari will create problems. When you turn of the internet on your phone the offline/online events will be delayed by up to 2 seconds and that can be problematic ...
Default initialization of std::array?
...ean zero-initialization.
The description at cppreference.com is actually a bit misleading. std::array is an aggregate class, and if the element type is primitive, it is POD: "plain old data," with semantics closely matching the C language. The implicitly-defined constructor of std::array< int, N ...
UIDevice uniqueIdentifier deprecated - What to do now?
...the same when the user uninstalls and re-installs the app. This requires a bit of effort, since the most reliable per-device-identifier seems to be the MAC address. You could query the MAC and use that as UUID.
Edit: One needs to always query the MAC of the same interface, of course. I guess the be...
Bare asterisk in function arguments?
...
While the original answer answers the question completely, just adding a bit of related information. The behaviour for the single asterisk derives from PEP-3102. Quoting the related section:
The second syntactical change is to allow the argument name to
be omitted for a varargs argument. The mean...
What are the best use cases for Akka framework [closed]
... Building off @RaymondRoestenburg re: MQ systems and alternatives. RabbitMQ, for example, is built on an actor-based programming language, Erlang. That's one way to think about the relation (and distinction) between actor and MQ. Meanwhile Apache Spark is neither worker-and-queue nor Actor-base...
“git pull” or “git merge” between master and development branches
... git pull --rebase origin master on your develop branch is a bit faster.
– Nathan Lilienthal
Apr 10 '13 at 14:33
|
show 5 more...
How does node.bcrypt.js compare hashed and plaintext passwords without the salt?
...
I had the same question too as the original poster and it took a look bit of looking around and trying different things to understand the mechanism. As has already been pointed out by others, the salt is concatenated to the final hash. So this means a couple of things:
The algorithm must know...
Which is better, number(x) or parseFloat(x)?
...') = NaN;
parseFloat(false) = NaN;
parseFloat('1a') = 1;
parseFloat is a bit slower because it searches for first appearance of a number in a string, while the Number constuctor creates a new number instance from strings that contains numeric values with whitespace or that contains false values.
...
When is .then(success, fail) considered an antipattern for promises?
...t no exception happened. The labelled block and the break statement feel a bit odd, this is actually what python has try-except-else for (recommended reading!).
// some_promise_call().then(logger.log).catch(logger.log)
try {
var results = some_call();
logger.log(results);
} catch(e) {
l...