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How do I return multiple values from a function? [closed]
...riables I'll fold them up in a dictionary. Otherwise I tend to forget the order and content of what I'm returning.
Also, introducing a 'special' structure makes your code more difficult to follow. (Someone else will have to search through the code to find out what it is)
If your concerned about t...
How do I change the UUID of a virtual disk?
...y you have your answer - but you need to stop vbox services of any kind in order to edit those files - otherwise you get same ole same ole. Also make sure your UUID for SATA HardDisk <attached devices > at the bottom of config file matches the UUID for the Hard Disk in the HardDrive section a...
Changing my CALayer's anchorPoint moves the view
... that anchorPoint while maintaining the same position moves the layer. In order to prevent this movement, you would need to adjust the layer's position to account for the new anchorPoint. One way I've done this is to grab the layer's bounds, multiply the bounds' width and height by the old and new...
Form inside a table
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What does java.lang.Thread.interrupt() do?
...ava is not pre-emptive. Put another way both threads have to cooperate in order to process the interrupt properly. If the target thread does not poll the interrupted status the interrupt is effectively ignored.
Polling occurs via the Thread.interrupted() method which returns the current thread's ...
SQL JOIN vs IN performance?
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That's rather hard to say - in order to really find out which one works better, you'd need to actually profile the execution times.
As a general rule of thumb, I think if you have indices on your foreign key columns, and if you're using only (or mostly) I...
Why is MATLAB so fast in matrix multiplication?
... of "kernels" (basic routines) that most linear algebra problems needed in order to be solved. These basic operations were then standardized in a specification called: Basic Linear Algebra Subprograms (BLAS). Engineers could then call these standard, well-tested BLAS routines in their code, making t...
How to check if a string contains text from an array of substrings in JavaScript?
...Of(arr[i]) != -1) {
// str contains arr[i]
}
}
edit:
If the order of the tests doesn't matter, you could use this (with only one loop variable):
var str = "texttexttext";
var arr = ["asd", "ghj", "xtte"];
for (var i = arr.length - 1; i >= 0; --i) {
if (str.indexOf(arr[i]) != -...
Submitting the value of a disabled input field
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Addressing the original question, in order to pass the value during the form submission "disabled" property should be "false" instead of "true".
– Daniel Vukasovich
Aug 2 '17 at 21:26
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What does the comma operator , do?
...ressions either side of it into one, evaluating them both in left-to-right order. The value of the right-hand side is returned as the value of the whole expression.
(expr1, expr2) is like { expr1; expr2; } but you can use the result of expr2 in a function call or assignment.
It is often seen in f...