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What does send() do in Ruby?
... by example:
o = Object.new
o.send(:to_s) # => "#<Object:0x00005614d7a24fa3>"
# is equivalent to:
o.to_s # => "#<Object:0x00005614d7a24fa3>"
Send lives in the Object class.
What is the benefit of ths?
The benefit of this approach is that you can pass in the method you want to ...
网站伪静态Rewrite重写中文路径时乱码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
....UrlEncode：utf8 格式
比如：
搞笑视频（gbk编码）：%B8%E3%D0%A6%CA%D3%C6%B5
搞笑视频（utf8编码）：%E6%90%9E%E7%AC%91%E8%A7%86%E9%A2%91
浏览器会自动转换：
http://www.你的域名.com/tag.asp?t=搞笑视频
http://www.你的域名.com/tag.asp?t=%B8%E3%D0%A...
Regular expression to match non-ASCII characters?
...rds_in_text = function (text) {
var regex = /([\u0041-\u005A\u0061-\u007A\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556...
HC-05/BLE 蓝牙通信数据乱码？接收到的中文乱码？乱码的原理及解决思路 · ...
...具默认是GBK编码，非UTF-8的，如“你好”对应16进制：C4 E3 BA C3。而App Inventor 2的中文字符串默认是UTF-8编码的（E4 BD A0 E5 A5 BD ）。
将App Inventor 2的蓝牙客户端组件的编码改为GBK即可。
当然，将串口编码格式改为UTF-8，App Inventor 2...
How to avoid reinstalling packages when building Docker image for Python projects?
...cb37dff0
Step 3 : RUN pip install -r requirements.txt
---> Running in 4b7a85a64c33
Downloading/unpacking pytest==2.3.4 (from -r requirements.txt (line 1))
Running setup.py (path:/tmp/pip_build_root/pytest/setup.py) egg_info for package pytest
Downloading/unpacking ipython (from -r requirements...
How can I do time/hours arithmetic in Google Spreadsheet?
...e formula.
For example:
B3 = 10:45
C3 = 20 (minutes)
D3 = 15 (minutes)
E3 = 8 (hours)
F3 = B3+time(E3,C3+D3,0) equals 19:20
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clang: how to list supported target architectures?
...
.Case("armv4t", "armv4t")
.Case("armv7", "armv7")
.Cases("armv7a", "armv7-a", "armv7")
.Cases("armv7r", "armv7-r", "armv7")
.Cases("armv7em", "armv7e-m", "armv7em")
.Cases("armv7f", "armv7-f", "armv7f")
.Cases("armv7k", "armv7-k", "armv7k")
.Cases("armv7m", "armv7-m"...
Controlling number of decimal digits in print output in R
...the magnitude of the numbers themselves they are large.
As mentioned by e3bo, you can use multiple-precision floating point numbers using the Rmpfr package.
mpfr("3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825")
These are slower and more memory int...
Reordering of commits
...ve is the command you want.
Example:
The current status is this:
bernt@le3180:~/src/stackoverflow/reordering_of_commits
$ git status
On branch master
nothing to commit, working tree clean
bernt@le3180:~/src/stackoverflow/reordering_of_commits
$ git log --oneline
a6e3c6a (HEAD -> master) Fourth...
Testing whether a value is odd or even
...
For my implementation isEven(2.122e3) returns true, but isEven("2.122e3") returns false. Conversely my isEven() fails for really big numbers because JS puts them in the exponent format when converting to string for the regex test. Oh well.
...