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Command substitution: backticks or dollar sign / paren enclosed? [duplicate]
...epeat each section of the poster's text, block-quoted, and followed by my response.
What's the preferred syntax, and why? Or are they pretty much interchangeable?
I would say that the $(some_command) form is preferred over the `some_command` form. The second form, using a pair of backquotes (t...
Block Declaration Syntax List
...onymous Block shows syntax error, without ^ too :(
– esp
May 20 '13 at 14:49
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Can I change the height of an image in CSS :before/:after pseudo-elements?
...now the intrinsic dimensions of the image, and it leaves you with some whitespace, which I can't get rid of ATM.
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How to replace case-insensitive literal substrings in Java
...gant perhaps as other approaches but it's pretty solid and easy to follow, esp. for people newer to Java. One thing that gets me about the String class is this: It's been around for a very long time and while it supports a global replace with regexp and a global replace with Strings (via CharSequen...
Comparison of CI Servers? [closed]
...ching for a comparison of different
continuous integration (CI) Servers (esp. focusing
on .NET) and couldn't find any.
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What is the difference between a weak reference and an unowned reference?
...ned above. Check "Resolving Strong Reference Cycles for Closures" section, esp. Quote: " Swift requires you to write self.someProperty or self.someMethod() (rather than just someProperty or someMethod()) whenever you refer to a member of self within a closure. This helps you remember that it’s pos...
What are some common uses for Python decorators? [closed]
... Possibly justified, but decorators are inherently confusing, esp. to first-year noobs who come behind you and try to mod your code. Avoid this with simplicity: just have do_something() enclose its code in a block under 'with lock:' and everyone can clearly see your purpose. Decorato...
How do I remove the passphrase for the SSH key without having to create a new key?
...is not at the default location say (/Users/yourname/.ssh/id_rsa), you can respond by putting /Users/yourname/.ssh/yourkey when prompted
– Chigozie Orunta
May 15 at 17:36
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How to launch Safari and open URL from iOS app
...l to Swift developers, it's a new language without a lot of documentation, esp. on solving real world iOS problems. In my case, autocomplete had chosen the "fileURLWithPath:" selector and I didn't realize that was why my URL was not opening, it was only by reading Dustin's answer that I saw that I s...
JavaScript query string [closed]
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The method provided by CMS is easier and cleaner. Esp. if you are not already using jquery.
– jcoffland
Sep 5 '12 at 0:09
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