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Find size of an array in Perl
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The first and third ways are the same: they evaluate an array in scalar context. I would consider this to be the standard way to get an array's size.
The second way actually returns the last index of the array, which is not (usually) ...
Get the subdomain from a URL
...etc.
Keep in mind that there are top level domains, second level domains, and subdomains. Technically speaking, everything except the TLD is a subdomain.
In the domain.com.uk example, "domain" is a subdomain, "com" is a second level domain, and "uk" is the TLD.
So the question remains more compl...
Determine the line of code that causes a segmentation fault?
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Use bt as a shorthand for backtrace.
– rustyx
May 27 '19 at 7:53
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Which is better option to use for dividing an integer number by 2?
...f the following techniques is the best option for dividing an integer by 2 and why?
23 Answers
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Node.js Web Application examples/tutorials [closed]
So I finished watching Douglas Crockford's excellent series on Javascript, and in the final episode (so far), loopage he lays out why Node.js is a near perfect solution for server side code.
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How to exit in Node.js
What is the command that is used to exit? (i.e terminate the Node.js process)
19 Answers
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Why is #!/usr/bin/env bash superior to #!/bin/bash?
...ven seen one enterprising individual suggest using #!/bin/bash was wrong and bash functionality would be lost by doing so.
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Patterns for handling batch operations in REST web services?
...resources. This is less common in REST patterns, but is allowed in the URI and HTTP specs. A semicolon divides horizontally related parameters within a resource.
Update several attributes, several resources:
POST /mail/0;1;2/markAsRead;category
POSTDATA: markAsRead=true,category=junk
Update seve...
How to identify if a webpage is being loaded inside an iframe or directly into the browser window?
....self !== window.top;
} catch (e) {
return true;
}
}
top and self are both window objects (along with parent), so you're seeing if your window is the top window.
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Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
I just installed posgresql with homebrew and when I go on to type the command
22 Answers
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