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Reverse of JSON.stringify?
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I read the OP as saying "I converted a javascript object to a JSON string, and now I want to convert it back - how do I do it?" All the other answers say just use JSON.parse. I'm just warning that theres a lot of cases that will not handle correctly. I...
To ARC or not to ARC? What are the pros and cons? [closed]
...W, make sure to use of Xcode to do the transition (Edit > Refactor > Convert to Objective-C ARC). During the process Xcode would do a lot of validation to make sure your code would work and figure out any codes that violates those designing guidelines.
– ZhangChn
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How to programmatically round corners and set random background colors
I'd like to round the corners of a view and also change the color of the view based on the contents at runtime.
8 Answers
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Algorithm to generate all possible permutations of a list?
... left to right, all the permutations of the remaining items are generated (and each one is added with the current elements). This can be done recursively (or iteratively if you like pain) until the last item is reached at which point there is only one possible order.
So with the list [1,2,3,4] all ...
Can a recursive function be inline?
...s , found that the above code would lead to "infinite compilation" if not handled by compiler correctly.
9 Answers
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Remove carriage return in Unix
...ose tools installed on your box, you've got bigger problems than trying to convert files :-)
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How do you do a deep copy of an object in .NET? [duplicate]
...nto serialization graph, since BinaryFormatter uses fields via reflection, and events are just fields of delegate types plus add/remove/invoke methods. You can use [field: NonSerialized] on event to avoid this.
– Ilya Ryzhenkov
Sep 24 '08 at 20:16
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Concatenating null strings in Java [duplicate]
...ly reference values need to be considered. If the reference is null, it is converted to the string "null" (four ASCII characters n, u, l, l). Otherwise, the conversion is performed as if by an invocation of the toString method of the referenced object with no arguments; but if the result of invoking...
How does java do modulus calculations with negative numbers?
...modulus of negative numbers are in use - some languages use one definition and some the other.
If you want to get a negative number for negative inputs then you can use this:
int r = x % n;
if (r > 0 && x < 0)
{
r -= n;
}
Likewise if you were using a language that returns a neg...
iPhone OS: How do I create an NSDate for a specific date?
...is basic stuff.
Anyway, here's the helper class I used in my project, to convert a string into an NSDate value :
@implementation DateHelper
+(NSDate*)parseDateString:(NSString *)dateString
{
NSDateFormatter *rfc3339TimestampFormatterWithTimeZone = [[NSDateFormatter alloc] init];
[rfc3339...