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Difference between Hashing a Password and Encrypting it
...unction (well, a mapping). It's irreversible, you apply the secure hash algorithm and you cannot get the original string back. The most you can do is to generate what's called "a collision", that is, finding a different string that provides the same hash. Cryptographically secure hash algorithms are...
Should I use a class or dictionary?
...er want to add some code? Where would your __init__ code go?
Classes are for bundling related data (and usually code).
Dictionaries are for storing key-value relationships, where usually the keys are all of the same type, and all the values are also of one type. Occasionally they can be useful for...
How to convert image to byte array
...ImageToByteArray(System.Drawing.Image imageIn)
{
using (var ms = new MemoryStream())
{
imageIn.Save(ms,imageIn.RawFormat);
return ms.ToArray();
}
}
C# Image to Byte Array and Byte Array to Image Converter Class
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HTML: Include, or exclude, optional closing tags?
...g.
E.G. each <li> implies a </li> if there isn't one right before it.
The forbidden end tags all would be immediately followed by their end tag so it would be kind of redundant to have to type <img src="blah" alt="blah"></img> every time.
I almost always use the optional ...
What is the JavaScript version of sleep()?
..., JavaScript has evolved significantly. All other answers are now obsolete or overly complicated. Here is the current best practice:
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function demo() {
console.log('Taking a break...');
await sle...
git switch branch without discarding local changes
... a bunch of modifications and when we go to commit them we notice we were working on the wrong branch.
6 Answers
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List comprehension vs map
Is there a reason to prefer using map() over list comprehension or vice versa? Is either of them generally more efficient or considered generally more pythonic than the other?
...
Check if a string matches a regex in Bash script
One of the arguments that my script receives is a date in the following format: yyyymmdd .
5 Answers
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Apply CSS Style to child elements
...t with a class of test". To accomplish that you need to change your selectors:
'>' isn't fully supported by some older browsers (I'm looking at you, Internet Explorer).
div.test th,
div.test td,
div.test caption {
padding: 40px 100px 40px 50px;
}
...
CharSequence VS String in Java?
...
Strings are CharSequences, so you can just use Strings and not worry. Android is merely trying to be helpful by allowing you to also specify other CharSequence objects, like StringBuffers.
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