大约有 30,000 项符合查询结果（耗时：0.0406秒） [XML]
Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
...fying the DOM will also apply and calculate CSS styles, layouts. The saved time from unnecessary DOM modification can be longer than the time spent diffing the virtual DOM.
The second point is even more important for non-trivial models such as one with huge amount of fields or large list. One fie...
setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
... change constraints, btw), call setNeedsUpdateConstraints, and most of the time, setNeedsLayout after that.
If you need any of the actions above to have immediate effect—e.g. when your need to learn new frame height after a layout pass—append it with a layoutIfNeeded.
Also, in your animation c...
How to parse the AndroidManifest.xml file inside an .apk package
...gTable
// 4th word is: Number of strings in string table
// WARNING: Sometime I indiscriminently display or refer to word in
// little endian storage format, or in integer format (ie MSB first).
int numbStrings = LEW(xml, 4*4);
// StringIndexTable starts at offset 24x, an array of 32 bit LE of...
What is the difference between a string and a byte string?
...plicitly abstracted away. Indeed, these days, it can change during the lifetime of a program and be different between different strings or might even be more than one (some encodings are cached), depending on the characters in them - but the only time you need to worry about that is if you're hackin...
C# binary literals
...m not as good at converting hex in my head as some developers are, and sometimes it's best to cater to the lowest common denominator.
– StriplingWarrior
Jun 22 '12 at 2:50
2
...
How do I edit an existing tag message in git?
...re right. Thanks for pointing that. After re-write the tag annotated a few times, I was check my tag with git show <tag> and I see all the previous editions.
– Manoel Vilela
Jul 29 '17 at 18:11
...
In which scenario do I use a particular STL container?
...e will never vary, but more importantly that size is determined at compile time and will never vary.
– YoungJohn
Jul 24 '15 at 20:51
...
Docker - how can I copy a file from an image to a host?
My question is related to this question on copying files from containers to hosts; I have a Dockerfile that fetches dependencies, compiles a build artifact from source, and runs an executable. I also want to copy the build artifact (in my case it's a .zip produced by sbt dist in '../target/`, ...
Split a module across several files
...Edit (2019-08-25): the following part of the answer was written quite some time ago. It explains how to setup such a module structure with rustc alone. Today, one would usually use Cargo for most use cases. While the following is still valid, some parts of it (e.g. #![crate_type = ...]) might seem s...
How to avoid .pyc files?
...unzip -l /tmp/example.zip
Archive: /tmp/example.zip
Length Date Time Name
-------- ---- ---- ----
8467 11-26-02 22:30 jwzthreading.py
-------- -------
8467 1 file
$ ./python
Python 2.3 (#1, Aug 1 2003, 19:54:32)
>>> i...