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How to rename a file using Python
... out of it. For example, if for whatever reason we want to rename the file by modifying the filename from the_file to the_file_1, then we can get the filename part:
name_without_extension = p.stem
And still hold the extension in hand as well:
ext = p.suffix
We can perform our modification wit...
Why does the month argument range from 0 to 11 in JavaScript's Date constructor?
...rst", "second", "third", ..., "twenty-seventh", ... }) and try to index it by tm_mday. Then again, maybe they just saw the absolute utility in making off by one errors a regular occurrence.
– D.Shawley
Mar 31 '10 at 12:00
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How do I fix the error 'Named Pipes Provider, error 40 - Could not open a connection to' SQL Server'
... this it only took 5 minutes to restart the sql server that was being used by an important client. Thank you very much.
– Shondeslitch
Dec 4 '18 at 16:26
2
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How do I run a simple bit of code in a new thread?
... Remember threads flagged IsBackground are not automatically terminated by the Runtime. This requires thread management by the app. If you leave the thread marked as not background then after the threads execution the thread is terminated for you.
– CmdrTallen
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What are the main performance differences between varchar and nvarchar SQL Server data types?
...
Always use nvarchar.
You may never need the double-byte characters for most applications. However, if you need to support double-byte languages and you only have single-byte support in your database schema it's really expensive to go back and modify throughout your applicati...
How to capture the browser window close event?
...rmation prompt if the window is actually closed later. You could fix that by recording the time in the submit and click events, and checking if the beforeunload happens more than a couple of seconds later.
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How to check if a URL is valid
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Use the URI module distributed with Ruby:
require 'uri'
if url =~ URI::regexp
# Correct URL
end
Like Alexander Günther said in the comments, it checks if a string contains a URL.
To check if the string is a URL, use:
url =~ /\A#{URI::regexp}\z/
If yo...
Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...型
**表示是一个包含宽字符字符串的数组
9. dd（display by double-word）
下一步就是继续查看argv数组里面的内容，根据前面的dv打印的结果，我们知道argc（也就是说明argv数组元素个数的参数）的值是2。在一台32位机（或者是在64位...
How do I join two lists in Java?
...
Off the top of my head, I can shorten it by one line:
List<String> newList = new ArrayList<String>(listOne);
newList.addAll(listTwo);
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How to determine an object's class?
...to find the runtime class of the object in picture. If Parent1 is extended by Child1 and Child2, try the following code Child1 child1 = new Child1(); Parent1 parentChild = new Child2(); Child2 child2 = new Child2(); (child1 instanceof Parent1); (child1 instanceof Child1); (parentChild instanceof Ch...