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Count number of occurrences of a given substring in a string
... the following solutions:
You mean a list of space separated sub-strings and want to know what is the sub-string position number among all sub-strings:
s = 'sub1 sub2 sub3'
s.split().index('sub2')
>>> 1
You mean the char-position of the sub-string in the string:
s.find('sub2')
>>...
How to limit depth for recursive file list?
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I use -print0 and xargs -0 a lot. Example: find . -maxdepth 1 -type d -print0 | xargs -0 ls -d
– Chris K
Mar 16 '14 at 21:53
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How do I detach objects in Entity Framework Code First?
... comment this will not completely detach entities. They are still attached and lazy loading works but entities are not tracked. This should be used for example if you want to load entity only to read data and you don't plan to modify them.
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How do I make a splash screen?
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Further reading:
App Launch time & Themed launch screens (Android Performance Patterns Season 6 Ep. 4)
Splash screen in Android: The right way
Old answer:
HOW TO: Simple splash screen
This answers shows you how to display a splash screen for a fixed amount of time when your app ...
Why does the C++ map type argument require an empty constructor when using []?
..., among other things, they should be default-constructible.
Without this (and others requirements) it would be needlessly hard to implement the various internal copy/move/swap/compare operations on the data structures with which STL containers are implemented.
Upon reference to the C++ Standard, ...
PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
I did a lot of searching and also read the PHP $_SERVER docs . Do I have this right regarding which to use for my PHP scripts for simple link definitions used throughout my site?
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Flattening a shallow list in Python [duplicate]
...be the best way to flatten a shallow list like this, balancing performance and readability?
23 Answers
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iOS 7 parallax effect in my view controller
...p for iOS 7 in Objective-C. I've got a screen in my app with a few buttons and a pretty background image. (It's a simple xib with UIButtons on top of a UIImageView .)
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How to get div height to auto-adjust to background size?
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not exactly useful since the image will use the 'space' and content will looks like having a great margin top.
– Bart Calixto
Nov 17 '13 at 8:24
38
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AngularJS : Difference between the $observe and $watch methods
I know that both Watchers and Observers are computed as soon as something in $scope changes in AngularJS. But couldn't understand what exactly is the difference between the two.
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