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Using the Swift if let with logical AND operator &&
...e statement above, the syntax would then be:
if let tabBarController = window!.rootViewController as? UITabBarController where tabBarController.viewControllers.count > 0 {
println("do stuff")
}
This uses the where clause.
Another example, this time casting AnyObject to Int, unwrappin...
How can I get dictionary key as variable directly in Python (not by searching from value)?
...or more keys if the dictionary has a lot of entries... what I am trying to do is this:
13 Answers
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How to trick an application into thinking its stdout is a terminal, not a pipe
I'm trying to do the opposite of " Detect if stdin is a terminal or pipe? ".
9 Answers
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How to manually trigger validation with jQuery validate?
...
For whatever reason I do not get the custom error text when I validate this way. May have something to do with the fact I'm running inside a Durandal dialog. Having tons of issues with this framework in said context.
– P.Br...
Regular Expressions: Is there an AND operator?
... but after that continue matching at the original match-point."
You can do as many of these as you want, and this will be an "and." Example:
(?=match this expression)(?=match this too)(?=oh, and this)
You can even add capture groups inside the non-consuming expressions if you need to save some...
Comparing two java.util.Dates to see if they are in the same day
...
Thanks, that looks like it will do what I want. In my case I'm comparing successive dates in a series, so it looks like I could just use Calendar instances instead of Date instances in my series.
– Jason S
Mar 25 '10 a...
How to get the separate digits of an int number?
...
To do this, you will use the % (mod) operator.
int number; // = some int
while (number > 0) {
print( number % 10);
number = number / 10;
}
The mod operator will give you the remainder of doing int division on a nu...
Get a substring of a char* [duplicate]
... subbuff[5];
memcpy( subbuff, &buff[10], 4 );
subbuff[4] = '\0';
Job done :)
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When should I use RequestFactory vs GWT-RPC?
...of incompatible code, many users wind up creating a peer PersonDTO that shadows the real Person object used on the server. The PersonDTO just has a subset of the getters and setters of the server-side, "domain", Person object. Now you have to write code that marshalls data between the Person and P...
Storing money in a decimal column - what precision and scale?
...ws a custom rounding algorithm to be implemented rather than taking the vendor's default (and bankers' rounding is alarming, to say the least, for a designer expecting all values ending in .5 to round away from zero).
Yes, DECIMAL(24, 8) sounds like overkill to me. Most currencies are quoted to fou...