大约有 7,000 项符合查询结果（耗时：0.0212秒） [XML]
Get specific object by id from array of objects in AngularJS
...dded in arrays. So assuming the same collection, the solution'd be:
const foo = { "results": [
{
"id": 12,
"name": "Test"
},
{
"id": 2,
"name": "Beispiel"
},
{
"id": 3,
"name": "Sample"
}
] };
foo.results.find(item => item.i...
var functionName = function() {} vs function functionName() {}
...ry, if, switch, while, etc., like this:
if (someCondition) {
function foo() { // <===== HERE THERE
} // <===== BE DRAGONS
}
And since they're processed before step-by-step code is run, it's tricky to know what to do when they're in a control structure.
Although...
Is there a literal notation for an array of symbols?
...
Yes! This is possible now in Ruby 2.0.0. One way to write it is:
%i{foo bar} # => [:foo, :bar]
You can also use other delimiters, so you could also write %i(foo bar) or %i!foo bar! for example.
This feature was originally announced here:
http://www.ruby-lang.org/zh_TW/news/2012/11/02/...
Return a `struct` from a function in C
...
When making a call such as a = foo();, the compiler might push the address of the result structure on the stack and passes it as a "hidden" pointer to the foo() function. Effectively, it could become something like:
void foo(MyObj *r) {
struct MyObj a...
Prepend a level to a pandas MultiIndex
...ne line using pandas.concat():
import pandas as pd
pd.concat([df], keys=['Foo'], names=['Firstlevel'])
An even shorter way:
pd.concat({'Foo': df}, names=['Firstlevel'])
This can be generalized to many data frames, see the docs.
...
PHP: How to handle
...</content>'
);
echo (string) $content;
// or with parent element:
$foo = simplexml_load_string(
'<foo><content><![CDATA[Hello, world!]]></content></foo>'
);
echo (string) $foo->content;
You might have better luck with LIBXML_NOCDATA:
$content = simpl...
Understanding the difference between Object.create() and new SomeFunction()
... property descriptors argument:
var o = Object.create({inherited: 1}, {
foo: {
get: (function () { // a closure
var closured = 'foo';
return function () {
return closured+'bar';
};
})()
}
});
o.foo; // "foobar"
Note that I'm talking about the ECMAScript 5th ...
How to create has_and_belongs_to_many associations in Factory girl
...e and my code looks like this:
Factory.define :user do |user|
user.name "Foo Bar"
user.after_create { |u| Factory(:company, :users => [u]) }
end
Factory.define :company do |c|
c.name "Acme"
end
share
|
...
How do I format a string using a dictionary in python-3.x?
... vals = defaultdict(lambda: '<unset>', {'bar': 'baz'})
>>> 'foo is {foo} and bar is {bar}'.format_map(vals)
'foo is <unset> and bar is baz'
Even if the mapping provided is a dict, not a subclass, this would probably still be slightly faster.
The difference is not big though, ...
git diff between cloned and original remote repository
...
1) Add any remote repositories you want to compare:
git remote add foobar git://github.com/user/foobar.git
2) Update your local copy of a remote:
git fetch foobar
Fetch won't change your working copy.
3) Compare any branch from your local repository to any remote you've added:
git dif...