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How can I round a number in JavaScript? .toFixed() returns a string?
...f (which are used to display decimal fractions), are not representable (at least not with full accuracy) in binary floating-point systems.
For example, 0.1 is really 0.1000000000000000055511151231257827021181583404541015625, and 0.01 is really 0.01000000000000000020816681711721685132943093776702880...
python tuple to dict
...za: in general, performance tests suggest that (in the C implementation at least) map is faster than a comprehension when the thing being mapped is another built-in function (like reversed); in most other cases, the opposite is true. But it's better to profile than guess :)
– K...
Difference between 3NF and BCNF in simple terms (must be able to explain to an 8-year old)
...on, R, is in 3NF iff for every nontrivial FD (X->A) satisfied
by R at least ONE of the following conditions is true:
(a) X is a superkey for R, or
(b) A is a key attribute for R
BCNF requires (a) but doesn't treat (b) as a special case of its own. In other words BCNF requires that e...
Is Chrome's JavaScript console lazy about evaluating arrays?
...d behavior to me. It was especially troubling to me because, in Chrome at least, it occurs when the code resides in scripts that are executed immediately (before the page is loaded), even when the console is open, whenever the page is refreshed. Calling console.log when the console is not yet acti...
Ruby on Rails patterns - decorator vs presenter
... @Smudge, draper decorators can decorate other decorates, at least as if the underlying models have an STI relationship.
– keruilin
Sep 3 '12 at 2:54
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Concatenating two lists - difference between '+=' and extend()
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That's right. But at least you can use nonlocal l statement in boo in Python3.
– monitorius
Jul 2 '15 at 9:58
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REST, HTTP DELETE and parameters
...art of the URL identifies a resource, whereas the querystring does not (at least not necessarily). Examples abound: getting the same resource but in a different format, getting specific fields of a resource, etc. If we consider the querystring as part of the resource identifier, it is impossible to ...
How to customise file type to syntax associations in Sublime Text?
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Note that this is the only method (at least in ST2) that allows to set specific syntax for files with double extensions (for example, whatever.twig.html), as the menu method only takes the last one!
– MM.
Dec 24 '14 at 12:17...
What is the best CSS Framework and are they worth the effort?
... this question yet (although I've seen a few upvotes), so I am going to at least attempt to tackle the second question in this prompt.
CSS Frameworks are great; like any other framework, they reduce development time and let you get working immediately on site-specific design and CSS. They think abo...
How to display a Yes/No dialog box on Android?
...ere's AlertDialog.Builder, but I'm shocked to know how difficult (well, at least not programmer-friendly) to display a dialog in Android.
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