大约有 48,000 项符合查询结果(耗时:0.0475秒) [XML]
python date of the previous month
...
you could use .replace() method: datetime.utcnow().replace(day=1) - timedelta(days=1)
– jfs
Mar 16 '12 at 6:43
1
...
How to split a long regular expression into multiple lines in JavaScript?
... function(reg){ return reg.source; }
).join(''), options);
}
And now let's rock
var r = multilineRegExp([
/^foo/, // we can add comments too
/(.*)/,
/\bar$/
]);
Since it has a cost, try to build the real regex just once and then use that.
...
iOS Remote Debugging
...se follow gregers' advice.
New answer:
Use Weinre.
Old answer:
You can now use Safari for remote debugging. But it requires iOS 6.
Here is a quick translation of http://html5-mobile.de/blog/ios6-remote-debugging-web-inspector
Connect your iDevice via USB with your Mac
Open Safari on your Mac ...
How to check if an appSettings key exists?
...ager.AppSettings
if (ConfigurationManager.AppSettings[name] != null)
{
// Now do your magic..
}
or
string s = ConfigurationManager.AppSettings["myKey"];
if (!String.IsNullOrEmpty(s))
{
// Key exists
}
else
{
// Key doesn't exist
}
...
Undefined reference to vtable
...ve functionA.
The definition for the above functionB.
Class C Contains: Now you're writing a Class C in which you are going to derive it from Class A.
Now if you try to compile you will get Undefined reference to vtable for Class C as error.
Reason:
functionA is defined as pure virtual and it...
Show Youtube video source into HTML5 video tag?
...6616c"></video>
Note there seems to some expire stuff. I don't know how long the src string will work.
Still testing myself.
Edit (July 28, 2011): Note that this video src is specific to the browser you use to retrieve the page source. I think Youtube generates this HTML dynamically (a...
Is there a way to make ellipsize=“marquee” always scroll?
...l over an item in a list view (like in the Market app), only then does the now-selected text start scrolling. And since this particular TextView isn't focusable or clickable, it will never lose its selection state.
Unfortunately, as far as I know there is no way to pre-set the selected state from ...
Does java have a int.tryparse that doesn't throw an exception for bad data? [duplicate]
...ke this:
if (tryParseInt(input)) {
Integer.parseInt(input); // We now know that it's safe to parse
}
EDIT (Based on the comment by @Erk)
Something like follows should be better
public int tryParse(String value, int defaultVal) {
try {
return Integer.parseInt(value);
} ca...
Difference between Inheritance and Composition
...ance is java.util.Stack, which currently extends java.util.Vector. This is now considered a blunder. A stack "is-NOT-a" vector; you should not be allowed to insert and remove elements arbitrarily. It should've been composition instead.
Unfortunately it's too late to rectify this design mistake, sin...
How to instantiate a File object in JavaScript?
...
Now you can!
var parts = [
new Blob(['you construct a file...'], {type: 'text/plain'}),
' Same way as you do with blob',
new Uint16Array([33])
];
// Construct a file
var file = new File(parts, 'sample.txt',...
