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Hidden features of Ruby
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If items is a string you don't have to enclose it with [*…]. String.each doesn't iterate over characters as some may expect. It just returns itself to the block.
– mxcl
Feb 17 '10 at 13:49
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REST API Best practices: Where to put parameters? [closed]
...ters in an url:
Optional parameters tend to be easier to put in the query string.
If you want to return a 404 error when the parameter value does not correspond to an existing resource then I would tend towards a path segment parameter. e.g. /customer/232 where 232 is not a valid customer id.
If ...
Why does this Java code compile?
...s test {
int a = a = 1;
int b = b + 1;
public static void Main(String[] args) {
int c = c = 1;
int d = d + 1;
}
}
The declaration of b is invalid and fails with an illegal forward reference error.
The declaration of d is invalid and fails with an variable d might no...
What's invokedynamic and how do I use it?
...mple would be something like:
Compiled from "Range.java"
public java.lang.String toString();
descriptor: ()Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokedynamic #18, 0 // InvokeDynamic #0:toString:(LRange;...
Finding the number of days between two dates
...t all of Europe moved the clock back an hour. That means that today has an extra 3600 seconds, and that ought to be reflected in the UNIX timestamps. If it is, then that means that today will count for two days with the above way of computing the number of days. And I'm not even starting about leap ...
How to pass object with NSNotificationCenter
...cation:(NSNotification*)notification
{
if ([notification.name isEqualToString:@"TestNotification"])
{
NSDictionary* userInfo = notification.userInfo;
NSNumber* total = (NSNumber*)userInfo[@"total"];
NSLog (@"Successfully received test notification! %i", total.intValue...
How to validate a url in Python? (Malformed or not)
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This allows everything. It returns True for the string fake or even for a blank string. There will never be any errors because those attributes are always there, and the list will always have a boolean value of True because it contains those attributes. Even if all of th...
How to sleep for five seconds in a batch file/cmd [duplicate]
...ait for. If the accuracy of the wait time is important (ie a second or two extra delay is not acceptable), you can use this approach:
powershell -command "$sleepUntil = [DateTime]::Parse('%date% %time%').AddSeconds(5); $sleepDuration = $sleepUntil.Subtract((get-date)).TotalMilliseconds; start-sleep...
Why should I not wrap every block in “try”-“catch”?
...esign; it is never just an afterthought that can be retrofitted with a few extra catch statements as if for seasoning.
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Where should signal handlers live in a django project?
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I actually like to make them classmethods of the model itself. That keeps everything within one class, and means you don't have to worry about importing anything.
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