大约有 30,000 项符合查询结果（耗时：0.0817秒） [XML]
How is “int main(){(([](){})());}” valid C++?
...
The code essentially calls an empty lambda.
Let's start from the beginning: [](){} is an empty lambda expression.
Then, in C and C++, you can wrap expressions in parens and they behave exactly the same† as if written without them, so that's w...
What are the benefits of dependency injection containers?
...ay because the really cool aspects of DI require the ability to programmatically select objects and configure and inject them into other objects using a system external and independent to the objects themselves.
A language must provide good support for both normal Object Oriented programming techni...
How can I download a specific Maven artifact in one command line?
...
Here's what worked for me to download the latest version of an artifact called "component.jar" with Maven 3.1.1 in the end (other suggestions did not, mostly due to maven version changes I believe)
This actually downloads the file and copies it into the local working directory
From bash:
mvn d...
Override ActiveRecord attribute methods
...
The long and short of it is that ActiveRecord does correctly handle super calls for ActiveRecord attribute accessors.
share
|
improve this answer
|
follow
|
...
Git stash twice
...P on master: 50cf63b Commit message B
If you made two stashes, then just call git stash pop twice. As opposed to git stash apply, pop applies and removes the latest stash.
You can also reference a specific stash, e.g.
git stash show stash@{1}
or
git stash apply stash@{1}
...
Create Directory if it doesn't exist with Ruby
...; ["foo/bar"]
Edit2: you do not have to use FileUtils, you may do system call (update from @mu is too short comment):
> system 'mkdir', '-p', 'foo/bar' # worse version: system 'mkdir -p "foo/bar"'
=> true
But that seems (at least to me) as worse approach as you are using external 'tool' w...
What is “point free” style (in Functional Programming)?
...ble names, you need to compose partially applied functions. That's what we call currying (or, more precisely, what is made possible through currying)
– Dario
Oct 3 '10 at 8:42
...
Android RelativeLayout programmatically Set “centerInParent”
...veRule(property);
}
view.setLayoutParams(layoutParams);
}
How to call method:
centerInParent - true
addOrRemoveProperty(mView, RelativeLayout.CENTER_IN_PARENT, true);
centerInParent - false
addOrRemoveProperty(mView, RelativeLayout.CENTER_IN_PARENT, false);
centerHorizontal - true
...
Cast a Double Variable to Decimal
... @PeterRitchie thread is a bit old but this should be said: Calling the Convert method directly would be the more appropriate approach. Maybe I'm just an optimization freak but one less instruction to resolve is a bonus (since using the explicit (Type) cast syntax is just an operator ...
Using curl to upload POST data with files
...t in case we want
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); // call return content
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1); navigate the endpoint
curl_setopt($ch, CURLOPT_POST, true); //set as post
curl_setopt($ch, CURLOPT_POSTFIELDS, $BODY); // set our $BODY...