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Do you need to close meta and link tags in HTML?

I was just reading somebody's HTML who never closed meta and link tags in the HTML head section. The code worked fine; is closing these tags optional? ...
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Insert auto increment primary key to existing table

...a into the primary key column automatically (I already have 500 rows in DB and want to give them id but I don't want to do it manually). Any thoughts? Thanks a lot. ...
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java.lang.IllegalStateException: The specified child already has a parent

...ing the return statement should solve your problem. You can keep the code and return the view if you don't want to regenerate view data, and onDestroyView() method you remove this view from its parent like so: @Override public void onDestroyView() { super.onDestroyView(); i...
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How to make jQuery to not round value returned by .width()?

I've searched around and couldn't find this. I'm trying to get the width of a div, but if it has a decimal point it rounds the number. ...
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How to debug a GLSL shader?

... Why would you want to debug anything? Because its code and he wants to examine run time values I would hazard.... – RichieHH Aug 31 '15 at 10:57 3 ...
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What is the good python3 equivalent for auto tuple unpacking in lambda?

...just to unfold the parameters - but that would be at once more inefficient and harder to read than your two suggestions: min(points, key=lambda p: (lambda x,y: (x*x + y*y))(*p)) update Python 3.8 As of now, Python 3.8 alpha1 is available, and PEP 572- assignment expressions are implemented. So,...
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Build vs new in Rails 3

...rm.client.new is creating a new Client object from the clients collection, and so it can automatically set the firm_id to some_firm.id, whereas the docs are calling Client.new which has no knowledge of any Firm's id at all, so it needs the firm_id passed to it. The only difference between some_firm...
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How can I fill a div with an image while keeping it proportional?

... If I correctly understand what you want, you may leave the width and height attributes off the image to maintain aspect ratio and use flexbox to do the centering for you. .fill { display: flex; justify-content: center; align-it...
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abort: no username supplied (see “hg help config”)

I have added repository and at the time of commit I get error as 6 Answers 6 ...
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Android: Access child views from a ListView

...yed using a ListView . It seems like I should get one of the TextView's and then use getTop() , but I can't figure out how to get a child view of a ListView . ...