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Ruby, !! operator (a/k/a the double-bang) [duplicate]
...eturns the proper boolean value.
For example:
"hello" #-> this is a string; it is not in a boolean context
!"hello" #-> this is a string that is forced into a boolean
# context (true), and then negated (false)
!!"hello" #-> this is a string that is forced into a boolean
...
Why am I getting a “401 Unauthorized” error in Maven?
...f you supply the wrong credentials (password etc). You also get an error (and off the top of my head is also a 401) if you try to publish something to a releases repository and that version already exists in the repository. So you might find that by publishing from the command line it works, but t...
How to pull a random record using Django's ORM?
... of them: newest, one that was not visited for most time, most popular one and a random one.
15 Answers
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How to know what the 'errno' means?
...
You can use strerror() to get a human-readable string for the error number. This is the same string printed by perror() but it's useful if you're formatting the error message for something other than standard error output.
For example:
#include <errno.h>
#include ...
Get the _id of inserted document in Mongo database in NodeJS
...ToInsert, function(err,docsInserted){
console.log(docsInserted);
});
and check the console to see what I mean.
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Javascript array search and remove string?
I have:
10 Answers
10
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How to use z-index in svg elements?
...Fiddle.
Solution (alternative)
The tag use with the attribute xlink:href and as value the id of the element. Keep in mind that might not be the best solution even if the result seems fine. Having a bit of time, here the link of the specification SVG 1.1 "use" Element.
Purpose:
To avoid re...
Converting Epoch time into the datetime
...
To convert your time value (float or int) to a formatted string, use:
time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(1347517370))
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Last segment of URL in jquery
... to locate the last occurrence of the / character in your URL, then the substring() function to return the substring starting from that location:
console.log(this.href.substring(this.href.lastIndexOf('/') + 1));
That way, you'll avoid creating an array containing all your URL segments, as split()...
How to write to Console.Out during execution of an MSTest test
...Redirector cr = new ConsoleRedirector())
{
Assert.IsFalse(cr.ToString().Contains("New text"));
/* call some method that writes "New text" to stdout */
Assert.IsTrue(cr.ToString().Contains("New text"));
}
}
The disposable ConsoleRedirector is defined as:
internal cl...