大约有 47,000 项符合查询结果（耗时：0.0638秒） [XML]
PostgreSQL - Rename database
...isconnect from the database to be renamed
\c postgres
-- force disconnect all other clients from the database to be renamed
SELECT pg_terminate_backend( pid )
FROM pg_stat_activity
WHERE pid <> pg_backend_pid( )
AND datname = 'name of database';
-- rename the database (it should now have...
Warn user before leaving web page with unsaved changes
...ou can do this by handling the beforeunload event and returning a non-null string:
window.addEventListener("beforeunload", function (e) {
var confirmationMessage = 'It looks like you have been editing something. '
+ 'If you leave before saving, your changes will be l...
Convert Iterable to Stream using Java 8 JDK
...r spliterator, and therefore better stream performance (maybe even good parallelism). It's also less code:
StreamSupport.stream(iterable.spliterator(), false)
.filter(...)
.moreStreamOps(...);
As you can see, getting a stream from an Iterable (see also this question) is...
UITextField auto-capitalization type - iPhone App
... on the keyboard. The best thing to do is capitalize the words in code:
NSString *text = [myTextField.text capitalizedString];
share
|
improve this answer
|
follow
...
Android- create JSON Array and JSON Object
...entsObj = new JSONObject();
studentsObj.put("Students", jsonArray);
String jsonStr = studentsObj.toString();
System.out.println("jsonString: "+jsonStr);
share
|
improve this answer
...
What is attr_accessor in Ruby?
I am having a hard time understanding attr_accessor in Ruby .
Can someone explain this to me?
19 Answers
...
JavaScript equivalent of jQuery's extend method
...ault3",
kd2: "default4"
}};
var settings = JSON.parse(JSON.stringify(Object.assign({}, defaults, config)));
console.log(settings.keyDeep); // Object {kd1: "default3", kd2: "default4"}
share
|
...
Can I initialize a C# attribute with an array or other variable number of arguments?
...t:
[assembly: CLSCompliant(true)]
class Foo : Attribute
{
public Foo(string[] vals) { }
}
[Foo(new string[] {"abc","def"})]
static void Bar() {}
Shows:
Warning 1 Arrays as attribute arguments is not CLS-compliant
For regular reflection usage, it may be preferable to have multiple attrib...
How to return multiple values? [duplicate]
...
You can do something like this:
public class Example
{
public String name;
public String location;
public String[] getExample()
{
String ar[] = new String[2];
ar[0]= name;
ar[1] = location;
return ar; //returning two values at once
}
}
...
What is the difference between MOV and LEA?
...reas MOV loads the actual value at that address.
The purpose of LEA is to allow one to perform a non-trivial address calculation and store the result [for later usage]
LEA ax, [BP+SI+5] ; Compute address of value
MOV ax, [BP+SI+5] ; Load value at that address
Where there are just constants invo...