大约有 5,500 项符合查询结果（耗时：0.0179秒） [XML]
Is the ternary operator faster than an “if” condition in Java [duplicate]
... readable. Consider maxSpeed = isParkingLot() ? 5 : ( isInnerCity() ? 50 : 100); vs. a chain of ifs or a switch statement. Also when the expressions get long (maxSpeed = map.getStreetType(car.getLocation()) == MapType.PARKING_LOT ? TrafficRules.getMaxSpeed(MapType.PARKING_LOT) : TrafficRules.getMaxS...
How to request a random row in SQL?
...seems to be markedly slower on SQL Server. My query looks like: select top 1000 C.CustomerId, CL.LoginName from Customer C inner join LinkedAccount LA on C.CustomerId=LA.CustomerId inner join CustomerLogin CL on C.CustomerId=CL.CustomerId group by C.CustomerId, CL.LoginName having count(*)>1 ord...
Maximum and Minimum values for ints
...ded. It can, for instance, calculate a googol with ease:
>>> 10**100
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000L
share
|
improve...
What's the difference between eval, exec, and compile?
...ass a reference to exec:
>>> call_later(exec, 'print(42)', delay=1000)
File "<stdin>", line 1
call_later(exec, 'print(42)', delay=1000)
^
SyntaxError: invalid syntax
Which a pattern that someone might actually have used, though unlikely;
Or use it in a lis...
How to create dictionary and add key–value pairs dynamically?
...prototypal method
function Foo() {
this.myRandomNumber = Math.random() * 1000 | 0;
}
Foo.prototype.toString = function () {
return "Foo instance #" + this.myRandomNumber;
};
dict[new Foo] = "some value";
console.log(dict);
// => {
// "Foo instance #712": "some value"
// }
(Note t...
How do I get the size of a java.sql.ResultSet?
...0 "Go ahead and jump"
false 3 "EVH" 456 "Might as well jump"
...
[1000 total rows]
Simply refactor your code to something like this:
Statement s=myConnection.createStatement(ResultSet.TYPE_FORWARD_ONLY,
ResultSet.CONCUR_READ_ONLY);
String from_whe...
Error TF30063: You are not authorized to access … \DefaultCollection
...n an office where everything was turned off and unplugged overnight due to 100+ mph gales. I'm assuming that once the TFS server restarted it needed anyone to re-authenticate...
– Fetchez la vache
Feb 13 '14 at 9:39
...
How to create streams from string in Node.Js?
...the scheduler has had time to do other things
a.pipe(process.stdout)
},100)*/
a.on('end', function() {
console.log('ended') // the end event will be called properly
})
Note that the 'close' event is not emitted (which is not required by the stream interfaces).
...
Save Screen (program) output to a file
...al device
You can then use tail to see that the file is updating.
tail -100 out.txt
share
|
improve this answer
|
follow
|
...
CSS Div stretch 100% page height
...vigation bar on the left hand side of my page, and I want it to stretch to 100% of the page height. Not just the height of the viewport, but including the areas hidden until you scroll. I don't want to use javascript to accomplish this.
...