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What's the UIScrollView contentInset property for?

Can someone explain to me what the contentInset property in a UIScrollView instance is used for? And maybe provide an example? ...
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What is the largest TCP/IP network port number allowable for IPv4?

What is the highest port number one can use? 8 Answers 8 ...
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How to center a “position: absolute” element

I'm having a problem centering an element that has the attribute position set to absolute . Does anyone know why the images are not centered? ...
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Looping through array and removing items, without breaking for loop

I have the following for loop, and when I use splice() to remove an item, I then get that 'seconds' is undefined. I could check if it's undefined, but I feel there's probably a more elegant way to do this. The desire is to simply delete an item and keep on going. ...
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What is the order of precedence for CSS?

I'm trying to figure out why one of my css classes seems to override the other (and not the other way around) 8 Answers ...
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Why is null an object and what's the difference between null and undefined?

Why is null considered an object in JavaScript? 21 Answers 21 ...
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How to get datetime in JavaScript?

How to get date time in JavaScript with format 31/12/2010 03:55 AM? 7 Answers 7 ...
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Maximum single-sell profit

Suppose we are given an array of n integers representing stock prices on a single day. We want to find a pair (buyDay, sellDay) , with buyDay ≤ sellDay , such that if we bought the stock on buyDay and sold it on sellDay , we would maximize our profit. ...
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Iterating over a numpy array

Is there a less verbose alternative to this: 3 Answers 3 ...
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How do I get my Python program to sleep for 50 milliseconds?

How do I get my Python program to sleep for 50 milliseconds? 6 Answers 6 ...