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Rebuild IntelliJ project indexes
IntelliJ IDEA 10.5.1 is reporting zero usages for all method, classes etc.
2 Answers
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django template display item value or empty string
...e string if the variable evaluates to False, ie empty strings, empty lists etc
{{ item.somefield|default_if_none:"" }}
{{ item.somefield|default:"" }}
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PHP - Modify current object in foreach loop
...horter (see comment by Paystey)
Per the PHP foreach documentation:
In order to be able to directly modify array elements within the loop precede $value with &. In that case the value will be assigned by reference.
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Best way to handle list.index(might-not-exist) in python?
...cked exceptions that Java has which a whole other discussion: mindview.net/Etc/Discussions/CheckedExceptions
– Tendayi Mawushe
Jan 25 '10 at 15:24
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Extending from two classes
...terface Foo and Bar both had the same functions, you would need to have an order of precedence. Explicitly extending your class would force you to make those decisions up front. Still, Excellent option :) +1
– The Lazy Coder
May 27 '17 at 20:36
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How do I use JDK 7 on Mac OSX?
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Note that in order to make applications use Oracle's Java 1.7 in favor of Apple's Java 1.6, I had to run /Library/Java/JavaVirtualMachines/1.7.0.jdk and drag "Java SE 7" to the top of the list on the "General" tab. This will also make jav...
Ruby: How to iterate over a range, but in set increments?
...th element to the block. If the range contains numbers or strings, natural ordering is used. Otherwise step invokes succ to iterate through range elements. The following code uses class Xs, which is defined in the class-level documentation.
range = Xs.new(1)..Xs.new(10)
range.step(2) {|x| puts x}
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PHP - iterate on string characters
...like to be able to do foreach , array_map , array_walk , array_filter etc. on the characters of a string.
9 Answers
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Shell - How to find directory of some command?
...ffers the whence built-in, which identifies other shell built-ins, macros, etc. The which command is more portable, however.
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Unable to resolve host “”; No address associated with hostname [closed]
...uter to sleep or changing the network connection (going from work to home, etc), then attempting to use the same emulator again. Closing and re-launching the emulator resolves the problem in this case.
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