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How to raise a ValueError?
...trates how to raise a ValueError the way you want. By-the-way, I think find_last(), find_last_index(), or something simlar would be a more descriptive name for this function. Adding to the possible confusion is the fact that Python already has a container object method named __contains__() that does...
Eager load polymorphic
...ions are only supported by preload. It's in the documentation here: http://api.rubyonrails.org/v5.1/classes/ActiveRecord/EagerLoadPolymorphicError.html
So always use preload for polymorphic associations. There is one caveat for this: you cannot query the polymorphic assocition in where clauses (whi...
Are there pronounceable names for common Haskell operators? [closed]
... "to" |
| $ | "apply" |
| _ | "whatever" |
| !! | "index" |
| ++ | "concat" |
| [] | "empty list" ...
Installing R with Homebrew
I'm trying to install R using Homebrew. I ran these commands which are recommended elsewhere on SO:
12 Answers
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What is the difference between decodeURIComponent and decodeURI?
... URI parts.
encodeURI in less common, and misleadingly named: it should really be called fixBrokenURI. It takes something that's nearly a URI, but has invalid characters such as spaces in it, and turns it into a real URI. It has a valid use in fixing up invalid URIs from user input, and it can also...
Check whether user has a Chrome extension installed
...trange, the documentation says it should work. "Unlike the other chrome.* APIs, parts of chrome.extension can be used by content scripts" and it lists sendRequest(), onRequest, connect(), onRequest, and getURL().
– Brad
Jun 9 '11 at 14:01
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Is it possible to Turn page programmatically in UIPageViewController?
Is it possible to turn page programmatically in UIPageViewController ?
17 Answers
17
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Mocha / Chai expect.to.throw not catching thrown errors
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Oof. Why don't the docs (chaijs.com/api/bdd/#throw) demonstrate this usage of bind? Seems like the most common testing scenario for to.throw is testing a particular condition within a function, which requires calling that function with the invalid state/argumen...
Difference between System.DateTime.Now and System.DateTime.Today
...as DateTimeKind.Local assigned to its Kind property. It is equivalent to calling any of the following:
DateTime.UtcNow.ToLocalTime()
DateTimeOffset.UtcNow.LocalDateTime
DateTimeOffset.Now.LocalDateTime
TimeZoneInfo.ConvertTime(DateTime.UtcNow, TimeZoneInfo.Local)
TimeZoneInfo.ConvertTimeFromUtc(...
Why can't I make a vector of references?
...m reference something else later). Other non-assignable types are also not allowed as components of containers, e.g. vector<const int> is not allowed.
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