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Difference between os.getenv and os.environ.get
... Indeed, it is, according to the official doc: docs.python.org/3/library/os.html
– ivanleoncz
Apr 18 '19 at 7:02
1
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Finding all cycles in a directed graph
...hms and 1 algorithm for cycles in undirected graphs in an open source Java library here : http://code.google.com/p/niographs/ .
BTW, since I mentioned undirected graphs : The algorithm for those is different. Build a spanning tree and then every edge which is not part of the tree forms a simple cyc...
Read stream twice
...ons in this post Convert InputStream to byte array in Java using 3rd party libs or not. Caution, if the read content is too big you might experience some memory troubles.
Finally, if your need is to read image, then use :
BufferedImage image = ImageIO.read(new URL("http://www.example.com/images/to...
How to check whether a script is running under Node.js?
...
By looking for CommonJS support, this is how the Underscore.js library does it:
Edit: to your updated question:
(function () {
// Establish the root object, `window` in the browser, or `global` on the server.
var root = this;
// Create a reference to this
var _ = new...
Check if a string contains a string in C++
...
Actually, you can try to use boost library,I think std::string doesn't supply enough method to do all the common string operation.In boost,you can just use the boost::algorithm::contains:
#include <string>
#include <boost/algorithm/string.hpp>
in...
How can you dynamically create variables via a while loop? [duplicate]
...'collections' module that might be applicable:
http://docs.python.org/dev/library/collections.html
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Express-js wildcard routing to cover everything under and including a path
...h 1 or more characters.
https://github.com/senchalabs/connect/blob/master/lib/middleware/router.js
If you have 2 routes that perform the same action you can do the following to keep it DRY.
var express = require("express"),
app = express.createServer();
function fooRoute(req, res, next) {
...
How to override and extend basic Django admin templates?
.... I am using virtualenv, so for me, the path is here:
~/.virtualenvs/edge/lib/python2.7/site-packages/django/contrib/admin/templates/admin
In this example, I want to modify the add new user form. The template responsiblve for this view is change_form.html. Open up the change_form.html and find t...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...失。
在调试应用程序时打开此功能可查看数据库正在做什么。
此属性可打开或关闭简单调试消息。这些消息显示为带有“确定”按钮的对话框。
这些消息直到对话框关闭后才会消失。在调试应用程序时打开此功能可查看...
How can I tell IntelliJ's “Find in Files” to ignore generated files?
...erated files
!file:*intermediates*/&&!file:*generated*/&&!lib:*..*
How to add this pattern follow
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