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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...】TaifunImage 拓展：图片压缩剪裁处理
【图像】SimpleBase64 拓展：图像Base64编解码传输
【图像】KIO4_Base64 拓展：更强大的图像Base64编解码工具，解码后的图像可写入到文件
【图像】KIO4_AnimatedGif：Gif 动画扩展，可点击，可设置...
Python strptime() and timezones?
..., minute, second). Nothing else. No mention of timezones.
Interestingly, [Win XP SP2, Python 2.6, 2.7] passing your example to time.strptime doesn't work but if you strip off the " %Z" and the " EST" it does work. Also using "UTC" or "GMT" instead of "EST" works. "PST" and "MEZ" don't work. Puzzlin...
iPhone hide Navigation Bar only on first page
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1044
The nicest solution I have found is to do the following in the first view controller.
Object...
Want to exclude file from “git diff”
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This was the best answer. I was able to simplify it a bit more: stackoverflow.com/a/58845608/3886183
– dlsso
Nov 13 '19 at 21:49
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AddRange to a Collection
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Here is a bit more advanced/production-ready version:
public static class CollectionExtensions
{
public static TCol AddRange<TCol, TItem>(this TCol destination, IEnumerable<TItem> source)
where...
List all the files that ever existed in a Git repository
...name-status | cut -f2- | sort -u
Edit: Thanks to Jakub for teaching me a bit more in the comments, this version has a shorter pipeline and gives git more opportunity to get things right.
git log --pretty=format: --name-only --diff-filter=A | sort -u
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Android - Handle “Enter” in an EditText
... When I upgraded Java, my Android tool-chain broke. It was 32-bit. I re-installed everything 64-bit and discovered that there are many more public emulator versions available now. I must admit that I only know that the behavior of the EditorActionListener is consistent in the emulators ...
What is the fastest way to get the value of π?
...n (available on Amazon).
I studied the AGM and related algorithms quite a bit: it's quite interesting (though sometimes non-trivial).
Note that to implement most modern algorithms to compute \pi, you will need a multiprecision arithmetic library (GMP is quite a good choice, though it's been a whil...
Multiple INSERT statements vs. single INSERT with multiple VALUES
.../compile time for these should be minimal.
I thought I'd look into this a bit more though so set up a loop (script) and tried adjusting the number of VALUES clauses and recording the compile time.
I then divided the compile time by the number of rows to get the average compile time per clause. The...
Actionbar notification count icon (badge) like Google has
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Could you elaborate a little bit more? Some code would be very useful
– Joaquin Iurchuk
Mar 3 '16 at 14:03
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