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How to count items in JSON object using command line?
...uppose it was in a property called records, like {"records":[...]}.
$ curl https://my-source-of-json.com/list | jq -r '.records' | jq length
2
$
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Visual Studio Wcf Test Client - entering an Int array
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How to git log from all branches for the author at once?
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git - Find commit where file was added
... the documentation. You can do the same thing for Deleted, Modified, etc.
https://git-scm.com/docs/git-log#Documentation/git-log.txt---diff-filterACDMRTUXB82308203
I have a handy alias for this, because I always forget it:
git config --global alias.whatadded 'log --diff-filter=A'
This makes it ...
Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...e
Or even anti_join(a1,a2) will get you the same results.
For more info: https://www.rstudio.com/wp-content/uploads/2015/02/data-wrangling-cheatsheet.pdf
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Cross-referencing commits in github
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What does the regular expression /_/g mean?
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Open URL in new window with JavaScript
... "location=yes,height=570,width=520,scrollbars=yes,status=yes";
var URL = "https://www.linkedin.com/cws/share?mini=true&url=" + location.href;
var win = window.open(URL, "_blank", strWindowFeatures);
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micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...可以解决。请使用最新编译出来的拓展（版本20240822）：https://www.fun123.cn/reference/iot/bluetoothle.html。
来源：https://bbs.tsingfun.com/thread-1953-1-1.html
In Visual Studio C++, what are the memory allocation representations?
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