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Ruby on Rails: How can I revert a migration with rake db:migrate?
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damienbrzdamienbrz
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How to create an array of object literals in a loop?
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401
var arr = [];
var len = oFullResponse.results.length;
for (var i = 0; i < len; i++) {
ar...
What is the opposite of evt.preventDefault();
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edited Jan 16 '18 at 9:01
Andy Li
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Percentage width child element in absolutely positioned parent on Internet Explorer 7
...l than ems; there's nothing to stop you specifying in hundredths of ems (0.01 em) and the browser will interpret as it sees fit.
Is there an area of the CSS specification that covers this?
None, as far as I remember em's and %'s were intended for font sizes alone back at CSS 1.0.
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In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
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+1, thanks. It's sad it doesn't do this automatically. Very wet IMHO.
– Marc-André Lafortune
Feb 26 '13 at 20:31
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How to optimize for-comprehensions and loops in Scala?
...s Java. I'm revisiting some Project Euler problems in Scala that I originally tackled in Java. Specifically Problem 5: "What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?"
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What does “mro()” do?
...very attribute you get on a class's instance, not just methods, is conceptually looked up along the __mro__, so, if more than one class among the ancestors defines that name, this tells you where the attribute will be found -- in the first class in the __mro__ that defines that name.
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string c_str() vs. data()
... have seen in actual implementations, they either do the same or data() calls c_str() .
6 Answers
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Get context of test project in Android junit test case
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Hemant Kaushik
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answered Mar 6 '16 at 15:56
eslambeslamb
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How to generate .json file with PHP?
...ce.
– Valentine Shi
May 16 '19 at 6:01
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Yes,programming languages evolve.My post answer was post...