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Find the day of a week
...(df$date),"%w"), we get number of current day :
as.numeric(format(as.Date("2016-05-09"),"%w"))
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Converting 'ArrayList to 'String[]' in Java
...the right size. For benchmarks and explanation see here: shipilev.net/blog/2016/arrays-wisdom-ancients
– Stuart Marks
Jan 21 '16 at 8:29
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How to make IntelliJ IDEA insert a new line at every end of file?
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IntelliJ IDEA 2016.3
Approach 1
File > Settings... > Editor > General > Ensure line feed at file end on Save
Approach 2
Help > Find Action... (Ctrl+Shift+A) > type "Ensure line feed" > switch the toggle to ON (...
Contains case insensitive
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From ES2016 you can also use slightly better / easier / more elegant method (case-sensitive):
if (referrer.includes("Ral")) { ... }
or (case-insensitive):
if (referrer.toLowerCase().includes(someString.toLowerCase())) { ... }
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How to find elements by class
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Update: 2016
In the latest version of beautifulsoup, the method 'findAll' has been renamed to
'find_all'. Link to official documentation
Hence the answer will be
soup.find_all("html_element", class_="your_class_name")
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On select change, get data attribute value
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As of 2016 find() is much faster than children() even in cases like this one where we only have a tree depth of 2.
– Hafenkranich
Oct 15 '16 at 14:56
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Convert floating point number to a certain precision, and then copy to string
...info on the various flags.
Python 3.6 (officially released in December of 2016), added the f string literal, see more information here, which extends the str.format method (use of curly braces such that f"{numvar:.9f}" solves the original problem), that is,
# Option 3 (versions 3.6 and higher)
new...
YYYY-MM-DD format date in shell script
...lesystems (cough**HFS) will convert the : to a /, giving you a string like 2016-09-15 11/05/00 which is mighty confusing.
– beporter
Sep 15 '16 at 16:07
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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Paint的实例化操作不要写在onDraw()方法中等）；
对于并发下载等类似逻辑的实现尽量避免多次创建线程对象，而是交给线程池处理。
当然了，有了上面说明GC导致的性能后我们就该定位分析问题了，可以通过运行DDMS->Allocation T...
how to remove css property using javascript?
...s, I completely agree - Microsoft has stopped supporting the browser since 2016.
– Nanoo
Aug 1 at 11:45
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