大约有 12,000 项符合查询结果（耗时：0.0403秒） [XML]
How do I request a file but not save it with Wget? [closed]
...s assume std out when you leave off the descriptor from a redirect. So >foo is interpreted as 1>foo. When & follows a redirect, it instructs the shell to redirect the former file descriptor to the same output as the later. In this case, 2>&1 says redirect file descriptor 2 (std er...
NoSql Crash Course/Tutorial [closed]
...ready I assume. For instance. in javascript you can create an object named foo and then do foo['myobj'] = myobj; to store stuff in the object.
All NoSQL servers really do is give you a way to add/delete/query massive arrays and still allow for persistence and fault tolerance. You can create a NoSQL...
How to use XPath contains() here?
...r>
<ul id="one">
<li>Model A</li>
<li>Foo</li>
</ul>
<ul id="two">
<li>Foo</li>
<li>Model A</li>
</ul>
</r>
XPaths
//ul[contains(li, 'Model')] selects the one ul element.
Note: The two ul e...
How to remove a field from params[:something]
...do a memo:
def parameters
@parameters ||= params.require(:root).permit(:foo, :bar)
end
Now you can do:
parameteres.delete(:bar)
parameters
=> <ActionController::Parameters {"foo" => "foo"} permitted: true>
...
What is the best project structure for a Python application? [closed]
...-level directory can be the top-level architecture of your application.
/foo
/bar
/baz
I recommend putting all of this under the "name-of-my-product" directory. So, if you're writing an application named quux, the directory that contains all this stuff is named /quux.
Another project's PYTHON...
When is it right for a constructor to throw an exception?
...
@Patrick: Not sure what you mean - if you do 'new Foo' and Foo's constructor throws, the language WILL reclaim the memory. If you allocate memory in a constructor and provide no means for releasing it other than the destructor, then the language won't reclaim it if you throw...
How to check if variable's type matches Type stored in a variable
...
@KyleHumfeld If you had Type foo; Object A; you can't write "A is foo", but you can write foo.isInstanceOfType(A)
– Timur Nuriyasov
Jan 11 '17 at 11:45
...
jQuery - hashchange event
...click event of the hash-changing links.
<a class='hash-changer' href='#foo'>Foo</a>
<script type='text/javascript'>
if (("onhashchange" in window) && !($.browser.msie)) {
//modern browsers
$(window).bind('hashchange', function() {
var hash = window.loc...
How do I uninstall a package installed using npm link?
...obal flag needs to be provided.
In order to uninstall the globally linked foo package, the following command can be used (using sudo if necessary, depending on your setup and permissions)
sudo npm rm --global foo
This will uninstall the package.
To check whether a package is installed, the npm ...
Case statement with multiple values in each 'when' block
...r logic in data is something like this:
# Initialization.
CAR_TYPES = {
foo_type: ['honda', 'acura', 'mercedes'],
bar_type: ['toyota', 'lexus']
# More...
}
@type_for_name = {}
CAR_TYPES.each { |type, names| names.each { |name| @type_for_name[type] = name } }
case @type_for_name[car]
when :fo...