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How to hide one item in an Android Spinner
...at the onItemSelected() callback is always called for every item selected (if the hidden item is the "current" one). Normally there is always one item in the spinner that doesn't generate a callback, namely the current one.
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How to push to a non-bare Git repository?
...ions was added in Git 2.3, and it makes the server update its working tree if it is clean.
So if you ensure that you always commit before you pull locally, and keep a clean working tree on the server (which you should do to avoid having merge conflicts), then this option is a good solution.
Sample...
How can you set class attributes from variable arguments (kwargs) in python
...s = {'a', 'b', 'c'}
self.__dict__.update((k, v) for k, v in kwargs.items() if k in allowed_keys)
you could filter the keys beforehand (use iteritems instead of items if you’re still using Python 2.x).
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Running Python code in Vim
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autocmd: command that Vim will execute automatically on {event} (here: if you open a python file)
[i]map: creates a keyboard shortcut to <F9> in insert/normal mode
<buffer>: If multiple buffers/files are open: just use the active one
<esc>: leaving insert mode
:w<CR>: sav...
Does a finally block run even if you throw a new Exception?
In this code will someVar be set even if the catch block is executed and the second Exception is thrown?
6 Answers
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What is “String args[]”? parameter in main method Java
...ied command-line arguments as an array of String objects.
In other words, if you run your program as java MyProgram one two then args will contain ["one", "two"].
If you wanted to output the contents of args, you can just loop through them like this...
public class ArgumentExample {
public st...
How to get an enum value from a string value in Java?
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@KevinMeredith: If you mean the toString() value, no, I wouldn't say that. name() will get you the actual defined name of the enum constant unless you override it.
– Michael Myers♦
Feb 14 '14 at 4:10
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What happened to console.log in IE8?
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Even better for fallback is this:
var alertFallback = true;
if (typeof console === "undefined" || typeof console.log === "undefined") {
console = {};
if (alertFallback) {
console.log = function(msg) {
alert(msg);
};
} else {
cons...
printf with std::string?
...rloading:
std::cout << "Follow this command: " << myString;
If, for some reason, you need to extract the C-style string, you can use the c_str() method of std::string to get a const char * that is null-terminated. Using your example:
#include <iostream>
#include <string>
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Rails check if yield :area is defined in content_for
...nt_for_whatever is deprecated.
Use content_for? instead, like this:
<% if content_for?(:whatever) %>
<div><%= yield(:whatever) %></div>
<% end %>
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