大约有 6,261 项符合查询结果（耗时：0.0229秒） [XML]
Rails layouts per action?
...u can specify the layout for an individual action using respond_to:
def foo
@model = Bar.first
respond_to do |format|
format.html {render :layout => 'application'}
end
end
share
|
...
Difference between passing array and array pointer into function in C
... undefined.
Given the following code:
int main(void)
{
int arr[10];
foo(arr);
...
}
In the call to foo, the array expression arr isn't an operand of either sizeof or &, so its type is implicitly converted from "10-element array of int" to "pointer to int" according to 6.2.3.1/3. Thus,...
Difference between 'new operator' and 'operator new'?
...
"operator new"
class Foo
{
public:
void* operator new( size_t );
}
"new operator":
Foo* foo = new Foo();
In this example, new Foo() calls Foo::operator new()
In other words, "new operator" calls "operator new()" just like the + oper...
Count the number of occurrences of a character in a string in Javascript
...e results. The specifics of the results will be given later.
1.
("this is foo bar".match(/o/g)||[]).length
//>2
2.
"this is foo bar".split("o").length-1
//>2
split not recommended. Resource hungry. Allocates new instances of 'Array' for each match. Don't try that for a >100MB file via ...
Any way to declare a size/partial border to a box?
...
h1 {
border-bottom: 1px solid #f00;
display: table;
}
<h1>Foo is not equal to bar</h1>
Centering, display:table makes it impossible to center the element with text-align:center.
Let's work around with margin:auto...
h1 {
border-bottom: 1px solid #f00;
display...
Databinding an enum property to a ComboBox in WPF
...packed to KeyValuePair and stored in dictionary.
XAML
<ComboBox Name="fooBarComboBox"
ItemsSource="{Binding Path=ExampleEnumsWithCaptions}"
DisplayMemberPath="Value"
SelectedValuePath="Key"
SelectedValue="{Binding Path=ExampleProperty, Mode=TwoWay}" &g...
How to tell if a string contains a certain character in JavaScript?
...
With ES6 MDN docs .includes()
"FooBar".includes("oo"); // true
"FooBar".includes("foo"); // false
"FooBar".includes("oo", 2); // false
E: Not suported by IE - instead you can use the Tilde opperator ~ (Bitwise NOT) with .indexOf()
~"FooBar".indexOf("oo...
Installation error: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED?
... file.
To isolate the error, look in logcat (when you do the 'adb install foo.apk' command). In the problem I encountered, logcat contained:
W/ActivityManager( 360): No content provider found for permission revoke: file:///data/local/tmp/foo.apk
D/Finsky (32707): [1] PackageVerificationReceiver...
Why does @foo.setter in Python not work for me?
So, I'm playing with decorators in Python 2.6, and I'm having some trouble getting them to work. Here is my class file:
4 A...
Python: Best way to add to sys.path relative to the current running script
...─ bar
│ ├── __init__.py
│ └── mod.py
└── foo
├── __init__.py
└── main.py
$ cat foo/main.py
from bar.mod import print1
print1()
$ cat bar/mod.py
def print1():
print('In bar/mod.py')
$ python foo/main.py # This gives an error
Traceback (most ...