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Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference
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One word answer: asynchronicity.
Forewords
This topic has been iterated at least a couple of thousands of times, here, in Stack Overflow. Hence, first off I'd like to point out some extremely useful resources:
@Felix Kling's answer to "How do I retu...
PHP random string generator
...ying to create a randomized string in PHP, and I get absolutely no output with this:
59 Answers
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Java 8 Distinct by property
...ere is a function that returns a predicate that maintains state about what it's seen previously, and that returns whether the given element was seen for the first time:
public static <T> Predicate<T> distinctByKey(Function<? super T, ?> keyExtractor) {
Set<Object> seen =...
Is ASCII code 7-bit or 8-bit?
My teacher told me ASCII is 8-bit character coding scheme. But it is defined only for 0-127 codes which means it can be fit into 7-bits. So can't it be argued that ASCII bit is actually 7-bit code?
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How to split a column into two columns?
I have a data frame with one column and I'd like to split it into two columns, with one column header as ' fips' and the other 'row'
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Find and replace in file and overwrite file doesn't work, it empties the file
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When the shell sees > index.html in the command line it opens the file index.html for writing, wiping off all its previous contents.
To fix this you need to pass the -i option to sed to make the changes inline and create a backup of the original file before it does the changes...
What is a handle in C++?
I have been told that a handle is sort of a pointer, but not, and that it allows you to keep a reference to an object, rather than the object itself. What is a more elaborate explanation?
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Assign variable in if condition statement, good practice or not? [closed]
...ssic OO languages such like Java to JavaScript. The following code is definitely not recommended (or even not correct) in Java:
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IEnumerable vs List - What to Use? How do they work?
...ow LINQ doesn't generate the SQL to query the database until you enumerate it? Consider this:
public IEnumerable<Animals> AllSpotted()
{
return from a in Zoo.Animals
where a.coat.HasSpots == true
select a;
}
public IEnumerable<Animals> Feline(IEnumerable<An...
Declaring variables inside a switch statement [duplicate]
I saw a few answers to this issue, and I get it — you can't declare and assign variables inside a switch . But I'm wondering if the following is correct at throwing an error saying
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