大约有 46,000 项符合查询结果（耗时：0.1431秒） [XML]
How to get a variable value if variable name is stored as string?
... rest of parameter as the name of the
variable; this variable is then expanded and that value is used in the
rest of the substitution, rather than the value of parameter itself.
share
|
improve...
How to convert vector to array
...ts for the new array: double arr[v.size()];
– rbaleksandar
Dec 25 '13 at 21:09
8
@rbaleksandar: A...
How can I add timestamp to logs using Node.js library Winston?
...k in this default case, I needed to either:
Remove the console transport and add again with the timestamp option.
Create your own Logger object with the timestamp option set to true.
The first:
var winston = require('winston');
winston.remove(winston.transports.Console);
winston.add(winston.tra...
Collections.emptyList() returns a List?
...aults to returning List<Object>. You can supply the type parameter, and have your code behave as expected, like this:
public Person(String name) {
this(name,Collections.<String>emptyList());
}
Now when you're doing straight assignment, the compiler can figure out the generic type p...
iOS 8 removed “minimal-ui” viewport property, are there other “soft fullscreen” solutions?
...mal-ui with a "touch-drag down" gesture.
There are several pre-conditions and obstacles to manage the view state, e.g. for minimal-ui to work, there has to be enough content to enable user to scroll; for minimal-ui to persist, window scroll must be offset on page load and after orientation change. ...
How to make git ignore changes in case?
...
You can force git to rename the file in a case-only way with this command:
git mv --cached name.txt NAME.TXT
Note this doesn't change the case of the file in your checked out copy on a Windows partition, but git records the casing change and you can commit that change. Future checkouts will ...
Why does Java switch on contiguous ints appear to run faster with added cases?
... (bytecode instruction tableswitch).
However, once the JIT starts its job and compiles the bytecode into assembly, the tableswitch instruction does not always result in an array of pointers: sometimes the switch table is transformed into what looks like a lookupswitch (similar to an if/else if stru...
How to terminate a Python script
I am aware of the die() command in PHP which exits a script early.
10 Answers
10
...
Can angularjs routes have optional parameter values?
Can I set a route with optional params (same template and controller, but some params should be ignored if they don't exist?
...
Restrict varchar() column to specific values?
...
Personally, I'd code it as tinyint and:
Either: change it to text on the client, check constraint between 1 and 4
Or: use a lookup table with a foreign key
Reasons:
It will take on average 8 bytes to store text, 1 byte for tinyint. Over millions of rows,...