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Why did Rails4 drop support for “assets” group in the Gemfile
In Rails 3, gems used em>x m>clusively to generate assets in the asset pipeline were properly placed in the assets group of the Gemfile:
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Can the :not() pseudo-class have multiple arguments?
I'm trying to select input elements of all type s em>x m>cept radio and checkbom>x m> .
5 Answers
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setState vs replaceState in React.js
...ve keys for some reason; but setting them to false/null is usually a more em>x m>plicit tactic.
While it's possible it could change; replaceState currently uses the object passed as the state, i.e. replaceState(m>x m>), and once it's set this.state === m>x m>. This is a little lighter than setState, so it could ...
String formatting in Python 3
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Here are the docs about the "new" format syntam>x m>. An em>x m>ample would be:
"({:d} goals, ${:d})".format(self.goals, self.penalties)
If both goals and penalties are integers (i.e. their default format is ok), it could be shortened to:
"({} goals, ${})".format(self.goals, s...
Python “raise from” usage
... use from, the __cause__ attribute is set and the message states that the em>x m>ception was directly caused by. If you omit the from then no __cause__ is set, but the __contem>x m>t__ attribute may be set as well, and the traceback then shows the contem>x m>t as during handling something else happened.
Setting t...
Composer killed while updating
...erver.
composer install will then read from the .lock file, fetching the em>x m>act same versions every time rather than finding the latest versions of every package. This makes your app less likely to break, and composer uses less memory.
Read more here: https://getcomposer.org/doc/01-basic-usage.md#in...
What is the difference between \r and \n?
How are \r and \n different? I think it has something to do with Unim>x m> vs. Windows vs. Mac, but I'm not sure em>x m>actly how they're different, and which to search for/match in regem>x m>es.
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What is a method group in C#?
... i.e. in theory the ToString method may have multiple overloads (plus any em>x m>tension methods): ToString(), ToString(string format), etc - hence ToString by itself is a "method group".
It can usually convert a method group to a (typed) delegate by using overload resolution - but not to a string etc; ...
TypeError: module.__init__() takes at most 2 arguments (3 given)
...nherit from this class in another file, calling the constructor throws an em>x m>ception:
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How to add/update an attribute to an HTML element using JavaScript?
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this works. it creates attribute if it doesn't em>x m>ists and updates it if it does em>x m>ist. is this documented somewhere as far as how this works?
– dev.e.loper
Apr 2 '09 at 16:21
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