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Why not use Double or Float to represent currency?
...od at first as the software rounds off the tiny errors, but as you perform more additions, subtractions, multiplications and divisions on inexact numbers, errors will compound and you'll end up with values that are visibly not accurate. This makes floats and doubles inadequate for dealing with money...
make arrayList.toArray() return more specific types
...d on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Cross-Origin Request Headers(CORS) with PHP headers
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Handling CORS requests properly is a tad more involved. Here is a function that will respond more fully (and properly).
/**
* An example CORS-compliant method. It will allow any GET, POST, or OPTIONS requests from any
* origin.
*
* In a production environm...
What does the git index contain EXACTLY?
...4decbe4ad99db3f7fb632de0439d 0 .mailmap
The Racy git problem gives some more details on that structure:
The index is one of the most important data structures in git.
It represents a virtual working tree state by recording list of paths and their object names and serves as a staging area to writ...
Remove files from Git commit
... about git commit -C. So for me, what I want is your exact recipe with one more step, the "new commit again" spelled out as git commit -C [hash of original HEAD commit from first step].
– metamatt
Jan 8 '14 at 23:56
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CSS: Animation vs. Transition
... does not specifically involve a start state and an end state, or you need more fine grain control over the keyframes in a transition, then you've got to use an animation.
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Remove duplicate values from JS array [duplicate]
... I really wish in 2020 we could start depreciating jQuery and other even-more dated answers... Stackoverflow is starting to show some age here...
– Nick Steele
Jun 29 at 23:23
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MongoDB SELECT COUNT GROUP BY
...noting here that $sortByCount is actually a "pseudo operator" like several more aggregation stage operators introduced from MongoDB 3.4. All they really do is expand into their respective aggregation stages. In this case a $group with $sum: 1 as shown in existing answers and an additional $sort sta...
Get characters after last / in url
...no slash this doesn't work correctly since strrpos returns false. Here's a more robust version:
$pos = strrpos($url, '/');
$id = $pos === false ? $url : substr($url, $pos + 1);
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Any good ORM tools for Android development? [closed]
...lish many-to-many (ormlite.com/docs/examples). Post to the user list with more questions (groups.google.com/group/ormlite-user).
– Gray
Feb 23 '11 at 15:06
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