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Round a Floating Point Number Down to the Nearest Integer?
...a floating point number and round it down to the nearest integer. However, if it's not a whole, I ALWAYS want to round down the variable, regardless of how close it is to the next integer up. Is there a way to do this?
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Preventing Laravel adding multiple records to a pivot table
... of an existing record by writing a very simple condition like this one :
if (! $cart->items->contains($newItem->id)) {
$cart->items()->save($newItem);
}
Or/and you can add unicity condition in your database, it would throw an exception during an attempt of saving a doublet.
Y...
Precise Financial Calculation in JavaScript. What Are the Gotchas?
...now what mistakes to avoid when using JavaScript to do this type of math—if it is possible at all!
7 Answers
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Why are global variables evil? [closed]
...so Evil? - Software Engineering Stack Exchange
Are global variables bad?
If you want to go deeper and find out why side effects are all about, and many other enlightening things, you should learn Functional Programming:
Side effect (computer science) - Wikipedia
Why are side-effects considered e...
Finding differences between elements of a list
Given a list of numbers, how does one find differences between every ( i )-th elements and its ( i+1 )-th?
10 Answers
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Transparent ARGB hex value
...ue").
To keep it simple one chooses black (#00000000) or white (#00FFFFFF) if the color does not matter.
In the table you linked to you'll find Transparent defined as #00FFFFFF.
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Can an AJAX response set a cookie?
Can an AJAX response set a cookie? If not, what is my alternative solution? Should I set it with Javascript or something similar?
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Do I cast the result of malloc?
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It adds clutter to the code, casts are not very easy to read (especially if the pointer type is long).
It makes you repeat yourself, which is generally bad.
It can hide an error if you forgot to include <stdlib.h>. This can cause crashes (or, worse, not cause a crash until way later in some ...
Extracting substrings in Go
...confused by the working of slices and the string storage format, which is different from what you have in C.
any slice in Go stores the length (in bytes), so you don't have to care about the cost of the len operation : there is no need to count
Go strings aren't null terminated, so you don't have ...
Iterate over a list of files with spaces
... This is extremely clean. And makes me feel nicer than changing IFS in conjunction with a for loop
– Derrick
Aug 18 '11 at 4:13
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