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Check whether a string is not null and not empty
How can I check whether a string is not null and not empty?
31 Answers
31
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UILabel - auto-size label to fit text?
...etch the height, but you can change it around easily to work the other way and stretch the width with something like this, which is I believe what you want to do:
@implementation UILabel (dynamicSizeMeWidth)
- (void)resizeToStretch{
float width = [self expectedWidth];
CGRect newFrame = [se...
What is Java EE? [duplicate]
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Java EE is actually a collection of technologies and APIs for the Java platform designed to support "Enterprise" Applications which can generally be classed as large-scale, distributed, transactional and highly-available applications designed to support mission-critical bus...
What's the difference between dist-packages and site-packages?
...s the difference between packages installed in the dist-packages directory and the site-packages directory?
2 Answers
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What is the difference between the bridge pattern and the strategy pattern?
I tried to read many articles on dofactory , wikipedia and many sites.
I have no idea on differences between bridge pattern and the strategy pattern.
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Input and output numpy arrays to h5py
...d A . How do I save it to an h5py file?
Also, how do I read the same file and put it as a numpy array in a different code, as I need to do manipulations with the array?
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Is there documentation for the Rails column types?
...s; use these for math that needs to be accurate
See this post for examples and an in-depth explanation on the differences between floats and decimals.
Boolean:
Use to store true/false attributes (i.e. things that only have two states, like on/off)
Binary:
Use to store images, movies, and other...
What are the differences between Abstract Factory and Factory design patterns?
... Difference Between The Two
The main difference between a "factory method" and an "abstract factory" is that the factory method is a method, and an abstract factory is an object. I think a lot of people get these two terms confused, and start using them interchangeably. I remember that I had a hard ...
django - why is the request.POST object immutable?
...nts a full set of mutation methods including __setitem__, __delitem__, pop and clear. It implements immutability by checking a flag when you call one of the mutation methods. And when you call the copy method you get another QueryDict instance with the mutable flag turned on.
For performance improve...
Get cookie by name
...tring .
The first (left) element is string of what was before the token, and the second one (right) is what is string of what was after the token.
(NOTE: in case string starts with a token, first element is an empty string)
Considering that cookies are stored as follows:
"{name}={value}; {name}...