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Convert Python dictionary to JSON array
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If you are fine with non-printable symbols in your json, then add ensure_ascii=False to dumps call.
>>> json.dumps(your_data, ensure_ascii=False)
If ensure_ascii is false, then the return value will be a
unicode instance subject to normal Python str to unicode
coercion rules in...
灰度图中找出深色像素并给出坐标 · App Inventor 2 中文网
...灰度图（素材里上传）。
拖一个标签、两个按钮（按钮_扫描、按钮_分批）、一个计时器（取消勾选「启用计时」）。
图片不是灰度图也没关系，加一个图片处理组件先转成灰度（见图片处理）：
when Screen1.Initialize() {
画...
Virtual member call in a constructor
I'm getting a warning from ReSharper about a call to a virtual member from my objects constructor.
18 Answers
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Better way to get type of a Javascript variable?
...ew method 'toType' -
var toType = function(obj) {
return ({}).toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase()
}
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Postgres - FATAL: database files are incompatible with server
...an run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
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impr...
SHA-1 fingerprint of keystore certificate
...as test
On windows, when keytool command is not found, Go to your installed JDK Directory e.g. <YourJDKPath>\Java\jdk1.8.0_231\bin\, open command line and try the above commands for debug/release mode.
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How to handle invalid SSL certificates with Apache HttpClient? [duplicate]
...thority, but a self
signed or issued by a private CMS.
Don't panic. All you need to do is to
add the server certificate to your
trusted Java key store if your client
is written in Java. You might be
wondering how as if you can not access
the machine where the server is
installed. ...
Annotating text on individual facet in ggplot2
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Typically you'd do something like this:
ann_text <- data.frame(mpg = 15,wt = 5,lab = "Text",
cyl = factor(8,levels = c("4","6","8")))
p + geom_text(data = ann_text,label = "Text")
It should work without specifying the factor variable comple...
delete word after or around cursor in VIM
...d of parameter, specifying that the deletion is to include a delimiter. Finally the 'w', another parameter -if you will- specifies that a word unit will be deleted.
– vlad-ardelean
Jun 28 '14 at 8:51
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Converting from IEnumerable to List [duplicate]
...to a Generic List.
//ArrayList Implements IEnumerable interface
ArrayList _provinces = new System.Collections.ArrayList();
_provinces.Add("Western");
_provinces.Add("Eastern");
List<string> provinces = _provinces.Cast<string>().ToList();
If you're using Generic version IEnumerable&...