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Why is “import *” bad?
...ed (readability).
Because you can't use cool tools like pyflakes to statically detect errors in your code.
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Gradients in Internet Explorer 9
...soft.com/testdrive/Graphics/CSSGradientBackgroundMaker/Default.html
Note: all of these browsers also support rgb/rgba in place of hexadecimal notation.
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How to get the directory of the currently running file?
...
It actually works even if os.Args[0] does not contain the abs path. The reason the playground result is not what you expected is because it is inside a sandbox.
– Gustavo Niemeyer
Jul 21 '15 at...
os.path.dirname(__file__) returns empty
...get the dirname of the absolute path, use
os.path.dirname(os.path.abspath(__file__))
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Split data frame string column into multiple columns
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Use stringr::str_split_fixed
library(stringr)
str_split_fixed(before$type, "_and_", 2)
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...ble来管理全局变量的，Lua把这些全局变量放在了一个叫“_G”的Table里。我们可以用如下的方式来访问一个全局变量（假设我们这个全局变量名叫globalVar）：_G.globalVar
_G["globalVar"]复制代码
我们可以通过下面的方式来遍历...
Import a file from a subdirectory?
....org/tutorial/modules.html
In short, you need to put a blank file named
__init__.py
in the "lib" directory.
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How do I keep track of pip-installed packages in an Anaconda (Conda) environment?
I've installed and have been using the Anaconda Python distribution, and I have started using the Anaconda (Conda) environment. I can use the standard conda install... command to put packages from the distribution into my environments, but to use anything outside (i.e. Flask-WTF, flask-sqlalchem...
What is __declspec and when do I need to use it?
I have seen instances of __declspec in the code that I am reading. What is it? And when would I need to use this construct?
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Can I use require(“path”).join to safely concatenate urls?
... takes any number. So depending on what you're doing you may need to nest calls, eg.. url.resolve(url.resolve(SERVER_URL, pagePath), queryString)
– Molomby
Aug 23 '19 at 0:31
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