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How do I print the type of a variable in Rust?
... println!("{}", type_of!(&mut &1));
println!("{}", type_of!(1.0));
println!("{}", type_of!("abc"));
println!("{}", type_of!(&"abc"));
println!("{}", type_of!(String::from("abc")));
println!("{}", type_of!(vec![1,2,3]));
println!("{}", <Result<String,i64&...
Setting Short Value Java
...
The "1." was only cut of in Java 5 and later. Java 1.0-1.4 are always refered to by that name by Sun. And that is done intentionally, because Sun used "Java 2" to refer to Java 1.2 up to Java 1.5/Java 5. It is very confusing, but inventing new names that Sun never used doesn'...
Why should we include ttf, eot, woff, svg,… in a font-face
...based on the Brotli compression algorithm and other improvements over WOFF 1.0 giving more than 30 % reduction in file size, is supported in Chrome, Opera, and Firefox.
http://en.wikipedia.org/wiki/Web_Open_Font_Format
http://en.wikipedia.org/wiki/Brotli
http://sth.name/2014/09/03/Speed-up-webfont...
Declaring a custom android UI element using XML
... as follows:
1. Declare attributes in values\attrs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="MyCustomView">
<attr name="android:text"/>
<attr name="android:textColor"/>
<attr name="extraI...
Fastest way to flatten / un-flatten nested JSON objects
...d"]}]} => {"a.0.b.0":"c","a.0.b.1":"d"}
[1,[2,[3,4],5],6] => {"0":1,"1.0":2,"1.1.0":3,"1.1.1":4,"1.2":5,"2":6}
Advantages:
Flattening an object is faster than the current solution.
Flattening and unflattening an object is as fast as or faster than the current solution.
Flattened objects ...
ByteArray字节数组扩展 · App Inventor 2 中文网
...
版本
更新内容
1.0 (2021-04-02)
初始版本
1.1 (2021-05-21)
修复ReadWord、ReadDWord和ToHex的错误
1.2 (2021-12-13)
ToString方法调用了JAVA 8的函数
1.3 (2022-05...
Samples of Scala and Java code where Scala code looks simpler/has fewer lines?
...ave got an XML file "company.xml" that looks like this:
<?xml version="1.0"?>
<company>
<employee>
<firstname>Tom</firstname>
<lastname>Cruise</lastname>
</employee>
<employee>
<firstname>Paul</firstn...
user authentication libraries for node.js?
...abase or file. Connect-auth is way too big. It's more for stuff like OAuth 1.0, OAuth 2.0 & Co
A very simple authentication with connect
(It's complete. Just execute it for testing but if you want to use it in production, make sure to use https)
(And to be REST-Principle-Compliant you shou...
What is the difference between NaN and None?
...results):
In [15]: s_bad.sum()
Out[15]: 1
In [16]: s_good.sum()
Out[16]: 1.0
To answer the second question:
You should be using pd.isnull and pd.notnull to test for missing data (NaN).
share
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
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Responsive Design in App Inventor
version 1.0: August 15, 2015
Responsive Design in App Inventor
Specifying sizes as percentages
Fixed vs. responsive sizing
Detailed example
Special circumstances
Limitation: Drawing a...