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What are the rules for calling the superclass constructor?

... When you instantiate a SubClass object by, say, SubClass anObject(1,2), does 1 then get passed to SuperClass(foo) (becomes the argument to paramater foo)? I have been searching through docs high and low, but none definitively state that the arguments to the SubClass constructor can be passed as a...
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Insert line break inside placeholder attribute of a textarea?

I have tried a few approaches but none worked. Does anyone know a the nifty trick to get around this? 21 Answers ...
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Round to at most 2 decimal places (only if necessary)

...9999999) evaluates to 100, whereas Math.round(100.5) evaluates to 101. IE9 does the same thing. This is due to floating point weirdness in javascript – stinkycheeseman Jul 26 '13 at 17:32 ...
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How do I set the value property in AngularJS' ng-options?

... Your example doesn't fill value attribute of option. It defines what would be stored in the model of <select> element. See difference between obj.value as obj.text and obj.text – Artem Andreev ...
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Difference between System.DateTime.Now and System.DateTime.Today

... clock of the computer that the code is running on. But what you get back does not have any information about that clock! The best that you get is that DateTime.Now.Kind == DateTimeKind.Local. But whose local is it? That information gets lost as soon as you do anything with the value, such as st...
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How to make a SPA SEO crawlable?

... So, we have both an href attribute for google as well as on onclick which does the job when the user clicks on the link. Now, since I use push-state I don't want any # on the URL, so a typical a tag may look like this: <a href="http://www.xyz.com/#!/category/subCategory/product111" onClick="lo...
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How do I get elapsed time in milliseconds in Ruby?

... yes, but giving just "Time.now" is inaccurate and does not answer the question precisely. – LowFieldTheory Nov 8 '19 at 14:46 add a comment ...
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Unix - create path of folders and file

...fails, the second command will still run (and fail, too, as that directory does not exist yet). With && if the first command fails, the second command does not run. – trysis Jun 7 '15 at 14:22 ...
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Random number generator only generating one random number

...antee of what happens internally is the bigger issue, though; since Random does not make any guarantees of thread-safety. Thus there are two valid approaches: Synchronize so that we don't access it at the same time from different threads Use different Random instances per thread Either can be fi...
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nano error: Error opening terminal: xterm-256color

...hat there is some program missing that causes this, but unfortunately nano does not give more information as to why it exactly fails. – shevy Aug 29 '16 at 21:36 ...