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Getting a random value from a JavaScript array
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But most people arrive to this question from Google search and the may use the solution in other scenarios than original OP.
– Seagull
Sep 9 '18 at 17:10
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How to find the type of an object in Go?
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Best way is using reflection concept in Google.
reflect.TypeOf gives type along with the package name
reflect.TypeOf().Kind() gives underlining type
share
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impro...
How to determine the screen width in terms of dp or dip at runtime in Android?
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I stumbled upon this question from Google, and later on I found an easy solution valid for API >= 13.
For future references:
Configuration configuration = yourActivity.getResources().getConfiguration();
int screenWidthDp = configuration.screenWidthDp; //T...
通过API获取IP信息、IP归属地 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...。
缺点：运营商解析有时为空。
三、ip138：http://www.ip138.com/ips138.asp?ip=8.8.8.8
返回一个网页，需要按照html规则使用正则表达式解析出相应内容，比较繁琐，不过ip138结果还比较准确。
缺点：非json数据，解析繁琐。
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C++ 使用OLE/COM高速读写EXCEL的源码 - c++1y / stl - 清泛IT社区，为创新赋能！
本源码主要通过OLE/COM实现对Excel表格的操作。
另外，代码中汇聚各网友的智慧进行了优化（比如预加载等），可以加快OLE读取的EXCEL的速度。
原文详见：http://www.tsingfun.com/html/2016/dev_0530/1454.html
下载地址：
How to get Resource Name from Resource id
... Thank you for answering this, I spent the better part of an hour googling this problem - the dev site kept pointing me to getString() - which was bloody useless for this.
– Steve
Sep 5 '12 at 12:03
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Recursive sub folder search and return files in a list python
...e this: 1, 10, 2. To get natural sorting (1, 2, 10), please have a look at https://stackoverflow.com/a/48030307/2441026
Results:
fast_scandir took 499 ms. Found files: 16596. Found subfolders: 439
os.walk took 589 ms. Found files: 16596
find_files took 919 ms. Found files: 1659...
Difference between “on-heap” and “off-heap”
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from http://code.google.com/p/fast-serialization/wiki/QuickStartHeapOff
What is Heap-Offloading ?
Usually all non-temporary objects you allocate are managed by java's garbage collector. Although the VM does a decent job doing garbage collec...
One line ftp server in python
...It is one of the very best ftp servers out there for python. It's used in google's chromium (their browser) and bazaar (a version control system). It is the most complete implementation on Python for RFC-959 (aka: FTP server implementation spec).
From the commandline:
python -m pyftpdlib
Alter...
How to update PATH variable permanently from Windows command line?
...am quoting a useful post by a Delphi programmer from this web page: http://www.tek-tips.com/viewthread.cfm?qid=686382
TonHu (Programmer) 22 Oct 03 17:57 I found where I read the original
posting, it's here:
http://news.jrsoftware.org/news/innosetup.isx/msg02129....
The excerpt of wh...