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How do I copy a hash in Ruby?
I'll admit that I'm a bit of a ruby newbie (writing rake scripts, now). In most languages, copy constructors are easy to find. Half an hour of searching didn't find it in ruby. I want to create a copy of the hash so that I can modify it without affecting the original instance.
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The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
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Note: This answers was good when it was written 11 years ago, but now there are far better options to do this more cleanly in a single line, both using only Java built-in classes or using a utility library. See other answers below.
Since strings are immutable, you may want to use the Str...
Is it possible to override JavaScript's toString() function to provide meaningful output for debuggi
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It's 2019 now and both nodejs and chrome pretty-print objects on their own, so coercion (when you add the object to a string) is the only use case you would google this question I believe.
– Klesun
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How to load json into my angular.js ng-model?
...le="width:350px;"></select>
</div>
And that's it. We can now see a list of our JSON data on a web page, ready to be used.
The key to this is in the "ng-options" tag:
customer.CustomerID as customer.CompanyName for customer in listOfCustomers
It's a strange syntax to get your he...
How to convert an ArrayList containing Integers to primitive int array?
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much easier now in Java8: integers.stream().mapToInt(Integer::valueOf).toArray
– Manish Patel
Oct 23 '15 at 21:18
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How can I select an element with multiple classes in jQuery?
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Aha, good point :-) Up until now I would've used .hasClass() but this is a way better notation.
– Flater
Aug 8 '12 at 8:29
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REST APIs: custom HTTP headers vs URL parameters
... my API via an authorised container (like my mobile app)? What I'm doing now is that my mobile app is not authorised to perform any action on its own and neither the end user.. both credentials must be present if the user is willing to perform an action.
– bolbol
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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method
...re performing a bitwise logical operation on an integer (which, for all I know, may be stored as two's complement or something like that...)
Two's complement explains how to represent a number in binary. I think I was right.
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How can I get the full/absolute URL (with domain) in Django?
...could add the s, but do you develop with https locally? and do you always know, if you have https but not sometimes...?
– tjati
May 5 '14 at 12:30
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find: missing argument to -exec
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I figured it out now. When you need to run two commands in exec in a find you need to actually have two separate execs. This finally worked for me.
find . -type f -name "*.rm" -exec ffmpeg -i {} -sameq {}.mp3 \; -exec rm {} \;
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