大约有 6,261 项符合查询结果（耗时：0.0259秒） [XML]
How can I copy the output of a command directly into my clipboard?
...Jan 24 23:00:00 EST 2017
$ cb | cat
Tue Jan 24 23:00:00 EST 2017
$ cb > foo
$ cat foo
Tue Jan 24 23:00:00 EST 2017
Chaining
$ date | cb | tee updates.log
Tue Jan 24 23:11:11 EST 2017
$ cat updates.log
Tue Jan 24 23:11:11 EST 2017
# clipboard contains: Tue Jan 24 23:11:11 EST 2017
Copy via fi...
Java: Calling a super method which calls an overridden method
...to be some confusion. Let me try a different explanation.
When you invoke foo(), you actually invoke this.foo(). Java simply lets you omit the this. In the example in the question, the type of this is SubClass.
So when Java executes the code in SuperClass.method1(), it eventually arrives at this.m...
ROW_NUMBER() in MySQL
...@i+1 AS iterator,
t.*
FROM
tablename AS t,
(SELECT @i:=0) AS foo
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jQuery how to bind onclick event to dynamically added HTML element [duplicate]
...lates the object to handle
var staticObj = [
{ ID: '1', Name: 'Foo' },
{ ID: '2', Name: 'Foo' },
{ ID: '3', Name: 'Foo' }
];
staticObj[1].children = [
{ ID: 'a', Name: 'Bar' },
{ ID: 'b', Name: 'Bar' },
{ ID: 'c', Name: 'Bar' }
];
s...
How can you sort an array without mutating the original array?
...
You can use slice with no arguments to copy an array:
var foo,
bar;
foo = [3,1,2];
bar = foo.slice().sort();
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Why can't static methods be abstract in Java?
...en you have a call to that method in the superclass itself. Suppose Super.foo calls Super.bar. If a subclass implements Subclass.bar, and then calls foo, then foo will still call Super.bar, not Subclass.bar. Hence, what you really have is two entirely different and unrelated methods both called "...
How to declare Return Types for Functions in TypeScript
... will be a place where you have to have an explicit return type.
function foo(){
if (true)
return "string";
else
return 0;
}
This, however, will work:
function foo() : any{
if (true)
return "string";
else
return 0;
}
...
Execute a terminal command from a Cocoa app
...
You can use NSTask. Here's an example that would run '/usr/bin/grep foo bar.txt'.
int pid = [[NSProcessInfo processInfo] processIdentifier];
NSPipe *pipe = [NSPipe pipe];
NSFileHandle *file = pipe.fileHandleForReading;
NSTask *task = [[NSTask alloc] init];
task.launchPath = @"/usr/bin/gre...
How do I copy an entire directory of files into an existing directory using Python?
... containing one or more files). Make sure there is not a directory named foo .
14 Answers
...
Mocking a class: Mock() or patch()?
...MyClass')
... def create_instance2(MyClass):
... MyClass.return_value = 'foo'
... return create_instance()
...
>>> i = create_instance2()
>>> i
'foo'
>>> def create_instance():
... print MyClass
... return MyClass()
...
>>> create_instance2()
<mock.Moc...