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C++ new int[0] — will it allocate memory?
...reference the memory that you get - you can only pass it to array delete - and you should delete it.
Here is an interesting foot-note (i.e not a normative part of the standard, but included for expository purposes) attached to the sentence from 3.7.3.1/2
[32. The intent is to have operator new(...
jQuery: how to change title of document during .ready()?
I am using some nested layouts in Ruby on Rails, and in one of the layouts i have a need to read in a string from a div and set that as the title of the document. What is correct way (if any) to set the title of the document?
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How do I automatically update a timestamp in PostgreSQL
...the time of the actual current moment, (2) the time the statement started, and (3) the time the transaction started. The example shown here is start of current transaction. You may or may not want that as opposed to the other two possibilities.
– Basil Bourque
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How to check if a URL is valid
...by:
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 you only want to check for web URLs (http or https), use this:
url =~ /\A#{U...
I need an unordered list without any bullets
...:
ul {
list-style-type: none;
}
You might also want to add padding: 0 and margin: 0 to that if you want to remove indentation as well.
See Listutorial for a great walkthrough of list formatting techniques.
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@Autowired and static method
...quire a lot of work, so I need some simple hack for that. I can't change randomMethod() to be non-static and I need to use this autowired bean. Any clues how to do that?
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Testing if object is of generic type in C#
...of inheritance. If, along the way, you have a base with both a base class and the interface you're looking for, this goes down the class path only.
– Groxx
Mar 18 '11 at 23:41
1
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How to crop an image in OpenCV using Python
...
remember that x and y are flipped. I missed this.
– markroxor
Aug 26 '18 at 9:31
15
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Git: Discard all changes on a diverged local branch
...branch blows away the branch's reflog. Resetting the branch, on the other hand not only preserves the reflog, but actually records the reset in the reflog. This makes the operation easily reversible later, if needed.
– Dan Moulding
Mar 30 '11 at 22:36
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Node.js client for a socket.io server
I have a socket.io server running and a matching webpage with a socket.io.js client. All works fine.
5 Answers
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