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How to override !important?
...he !important rule.
td.a-semantic-class-name { height: 100px; }
I personally never use !important in my style sheets. Remember that the C in CSS is for cascading. Using !important will break this.
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How to create streams from string in Node.Js?
...g"])
readable.on("data", (chunk) => {
console.log(chunk) // will be called once with `"input string"`
})
Note that at least between 10.17 and 12.3, a string is itself a iterable, so Readable.from("input string") will work, but emit one event per character. Readable.from(["input string"]) wil...
Save Screen (program) output to a file
I need to save the whole output of Screen to a file to check later all the content.
11 Answers
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Inheriting class methods from modules / mixins in Ruby
...ors of the class. You can look at the ancestors of any class or module by calling its ancestors method:
module M
def foo; "foo"; end
end
class C
include M
def bar; "bar"; end
end
C.ancestors
#=> [C, M, Object, Kernel, BasicObject]
# ^ look, it's right here!
When you call a metho...
How do I declare class-level properties in Objective-C?
...mething that's equivalent to a static variable? E.g. only one instance for all types of Foo?
To declare class functions in Objective-C you use the + prefix instead of - so your implementation would look something like:
// Foo.h
@interface Foo {
}
+ (NSDictionary *)dictionary;
// Foo.m
+ (NSDicti...
Does :before not work on img elements?
... place an image before an img element, only some other element. Specifically, my styles are:
12 Answers
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In Python, how do you convert a `datetime` object to seconds?
...datetime(1970,1,1)).total_seconds()
1256083200.0
The starting date is usually specified in UTC, so for proper results the datetime you feed into this formula should be in UTC as well. If your datetime isn't in UTC already, you'll need to convert it before you use it, or attach a tzinfo class that ...
Removing item from vector, while in C++11 range 'for' loop?
... @SethCarnegie Erase-remove with a lambda for the predicate elegantly allows that (since this is already C++11)
– Potatoswatter
Apr 28 '12 at 23:13
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Show spinner GIF during an $http request in AngularJS?
...nnerFunction);
})
// register the interceptor as a service, intercepts ALL angular ajax http calls
.factory('myHttpInterceptor', function ($q, $window) {
return function (promise) {
return promise.then(function (response) {
// do something on success
...
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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