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What is the difference between Pan and Swipe in iOS?
...antics: a pan recognizer looks for the beginning of translational movement and continues to report movement in any direction over time, while a swipe recognizer makes an instantaneous decision as to whether the user's touches moved linearly in the required direction.
By default, no two recognizers...
Fundamental difference between Hashing and Encryption algorithms
I see a lot of confusion between hashes and encryption algorithms and I would like to hear some more expert advice about:
1...
How to randomize (shuffle) a JavaScript array?
...github.com/coolaj86/knuth-shuffle
You can see a great visualization here (and the original post linked to this)
function shuffle(array) {
var currentIndex = array.length, temporaryValue, randomIndex;
// While there remain elements to shuffle...
while (0 !== currentIndex) {
//...
UICollectionView inside a UITableViewCell — dynamic height?
...ually easier than you may think. Put your cells into NIBs (or storyboards) and pin them to let auto layout do all the work
Given the following structure:
TableView
TableViewCell
CollectionView
CollectionViewCell
CollectionViewC...
In AngularJS, what's the difference between ng-pristine and ng-dirty?
What are the differences between ng-pristine and ng-dirty ? It seems you can have both to be true :
5 Answers
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Coding Practices which enable the compiler/optimizer to make a faster program
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Write to local variables and not output arguments! This can be a huge help for getting around aliasing slowdowns. For example, if your code looks like
void DoSomething(const Foo& foo1, const Foo* foo2, int numFoo, Foo& barOut)
{
for (int...
Set cursor position on contentEditable
...
This is compatible with the standards-based browsers, but will probably fail in IE. I'm providing it as a starting point. IE doesn't support DOM Range.
var editable = document.getElementById('editable'),
selection, range;
// Populates selection and ...
difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
I'm new to android and I'm trying to understand the difference between getApplication() , getApplicationContext( ), getBaseContext() , getContext() and someClass.this and especially when to use the these methods in the following code lines:
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Could not locate Gemfile
...no Ruby developer but I have an application on my server using Ruby, Gems, and Bundler. I am trying to install another Ruby on under a different user account but on the same VPS. When I go to run
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What is the best way to tell if a character is a letter or number in Java without using regexes?
What is the best and/or easiest way to recognize if a string.charAt(index) is an A-z letter or a number in Java without using regular expressions? Thanks.
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