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Is there an “exists” function for jQuery?
...okup (cheap!) with two function calls, which are much more expensive—and one of those function calls recreates a jQuery object that you already have, which is just silly.
– C Snover
May 30 '10 at 4:14
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Add leading zeroes to number in Java? [duplicate]
... many locales that do NOT use Arabic numerals 0-9 (oddly enough, Arabic is one of those locales). I had a bug where my code was crashing on Android when the phone was set in Arabic because I was formatting a date string using String.format("%04d-%02d-%02d", year, month, day), thinking that would pro...
How to pass optional arguments to a method in C++?
...ave multiple optional parameters I should either implement all of them or none at all? I cannot choose to use 1 optional parameter but not the rest?
– Gerard
Apr 24 '14 at 10:19
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INSTALL_FAILED_UPDATE_INCOMPATIBLE when I try to install compiled .apk on device
...cation which you want to install is already installed. just remove the old one and try again.
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How to concatenate items in a list to a single string?
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@Wouter, it will not. On the one hand, only lists of strings can be joined; so list.join would be inappropriate for an arbitrary list. On the other, the argument of str.join can be any "iterable" sequence of strings, not just a list. The only thing that ...
What are the Ruby Gotchas a newbie should be warned about? [closed]
... function as scope resolution operators.
To denote floating point numbers, one must follow with a zero digit (99.0) or an explicit conversion (99.to_f). It is insufficient to append a dot (99.), because numbers are susceptible to method syntax.
Boolean evaluation of non-boolean data is strict: 0, ""...
What is null in Java?
...s of Variables
Each class variable, instance variable, or array component is initialized with a default value when it is created:
For all reference types, the default value is null.
How this is used varies. You can use it to enable what is called lazy initialization of fields...
How to use getJSON, sending data with post method?
I am using above method & it works well with one parameter in URL.
7 Answers
7
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Comparing two files in linux terminal
...ormat="" file1.txt file2.txt
[root@vmoracle11 tmp]# cat file1.txt
test one
test two
test three
test four
test eight
[root@vmoracle11 tmp]# cat file2.txt
test one
test three
test nine
[root@vmoracle11 tmp]# diff --changed-group-format='%<' --unchanged-group-format='' file1.txt file2.txt
test...
Why do I want to avoid non-default constructors in fragments?
I am creating an app with Fragments and in one of them, I created a non-default constructor and got this warning:
6 Answe...