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What is the relationship between UIView's setNeedsLayout, layoutIfNeeded and layoutSubviews?
... correct:
[self.subview1 setNeedsLayout];
// but I don't claim to know definitively.
}
AFAIK layoutIfNeeded isn't generally meant to be overridden in your subclass. It's a method that you're meant to call when you want a view to be laid out right now. Apple's implementation might look so...
Why does running the Flask dev server run itself twice?
...######### Restarting @ {} ###################'.format(
datetime.utcnow())
However, if you need to set up module globals, then you should instead use the @app.before_first_request decorator on a function and have that function set up such globals. It'll be called just once after every reloa...
c++11 Return value optimization or move? [duplicate]
...nitialisers and variable prvalue object initialisers, therefore the option now only disables copy elision in the remaining cases.
– Maggyero
Apr 21 at 14:40
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NSDate get year/month/day
...o the user. Consider that users might follow a Buddhist calendar (the year now is 2558 or something), or any other number of odd calendars. You don't want your app to break in these cases. Use the gregorian calendar unless you have a very specific reason not to. This bug is hard to catch because you...
How can you iterate over the elements of an std::tuple?
... overloads for every type the tuple might contain. This works best if you know all the tuple elements will share a common base class or something similar.
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Rails: Open link in new tab (with 'link_to')
...is one needs to add on the 'rel' attribute to the code.
rel: 'noopener'
Now the link_to should be:
<%= link_to image_tag("facebook.png", class: :facebook_icon, alt: "Facebook"), "http://www.facebook.com/mypage", target: :_blank, rel: 'noopener %>
rubocop docs
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How to set specific java version to Maven
...e). I need both of them for different projects. But for Maven I need 1.7, now my Maven uses 1,6 java version, how can I set Maven to use 1.7?
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json_encode() escaping forward slashes
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!important read before: https://stackoverflow.com/a/10210367/367456 (know what you're dealing with - know your enemy)
json_encode($str, JSON_UNESCAPED_SLASHES);
If you don't have PHP 5.4 at hand, pick one of the many existing functions and modify them to your needs, e.g. http://snippets.dzo...
How can I detect whether an iframe is loaded?
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Good catch @MohdAbdulMujib, it's now a classic one :-)
– The Alpha
Nov 15 '18 at 21:18
1
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Java 8 Stream and operation on arrays
...va 8 stream capabilities. Coming from Python, I was wondering if there was now a neat way to do operations on arrays like summing, multiplying two arrays in a "one line pythonic" way ?
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