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Why do some websites add “Slugs” to the end of URLs? [closed]
...ding this one, add what are apparently called slugs - descriptive but as far as I can tell useless bits of text - to the end of URLs.
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What does iota of std::iota stand for?
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Its the greek letter that sometimes gets used in mathematics to denote sets of numbers or unit vectors. In the C++ case, you get a constructed vector set. Nothing to do with itoa.
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improv...
Convert between UIImage and Base64 string
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Swift
First we need to have image's NSData
//Use image name from bundle to create NSData
let image : UIImage = UIImage(named:"imageNameHere")!
//Now use image to create into NSData format
let imageData:NSData = UIImagePNGReprese...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
To help future viewers of this post, I created this demo of pluma's answer.
13 Answers
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Update a record without first querying?
...the datastore. Example:
dataEntity.ExecuteStoreCommand
("UPDATE items SET itemstatus = 'some status' WHERE id = 123 ");
For performance reasons, you may want to pass in variables instead of a single hard coded SQL string. This will allow SQL Server to cache the query and reuse with parameter...
What is array to pointer decay?
...e type of the expression from "N-element array of T" to "pointer to T" and sets the value of the expression to the address of the first element of the array. The exceptions to this rule are when an array is an operand of either the sizeof or & operators, or the array is a string literal being u...
Iterating through a range of dates in Python
I have the following code to do this, but how can I do it better? Right now I think it's better than nested loops, but it starts to get Perl-one-linerish when you have a generator in a list comprehension.
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Why do assignment statements return a value?
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Aside from the reasons already mentioned (assignment chaining, set-and-test within while loops, etc), to properly use the using statement you need this feature:
using (Font font3 = new Font("Arial", 10.0f))
{
// Use font3.
}
MSDN discourages declaring the disposable object outside...
Why should hash functions use a prime number modulus?
A long time ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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How do I insert a linebreak where the cursor is without entering into insert mode in Vim?
... the next space and repeat the last command.
Depending on your autoindent settings, the above may or may not indent the return statement properly. If not, then use sEnterTabEsc instead to replace the space with a newline, indent the line, and exit insert mode. You would have to replace the second s...