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How can I dynamically create a selector at runtime with Objective-C?

... And what does that selector supposedly do? Shouldn't we specify a block or something? – user4951 Nov 4 '12 at 11:57 ...
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How do I make the scrollbar on a div only visible when necessary?

...ote, you can also specify for only the x, or y scrollbar: overflow-x: auto and overflow-y: auto). share | improve this answer | follow | ...
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How to get String Array from arrays.xml file

... Just change the code to: package com.xtensivearts.episode.seven; import android.app.ListActivity; import android.os.Bundle; import android.widget.ArrayAdapter; public class Episode7 extends ListActivity { String[] mTestArray; /** Called when the activity is first created. */ @Overri...
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Visual Studio Immediate window: how to see more than the first 100 items

... this is way late. However, If you add your object to the watch window. Expand the properties, where all are displayed. Then Ctrl-A and Copy. You can then paste in excel to get an organized list of properties and their values. ...
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Fastest way to replace NAs in a large data.table

... data.table , with many missing values scattered throughout its ~200k rows and 200 columns. I would like to re code those NA values to zeros as efficiently as possible. ...
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Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]

...rchitecture, then choose Heroku. If you want to focus on the architecture and to be able to use different web servers, then choose AWS. AWS is more time-consuming based on what service/product you choose, but can be worth it. AWS also comes with many plugin services and products. Heroku Platfo...
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How do I force Postgres to use a particular index?

...s a conscious decision made by the PostgreSQL team. A good overview of why and what you can do instead can be found here. The reasons are basically that it's a performance hack that tends to cause more problems later down the line as your data changes, whereas PostgreSQL's optimizer can re-evaluate ...
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What's the difference between URI.escape and CGI.escape?

What's the difference between URI.escape and CGI.escape and which one should I use? 7 Answers ...
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Matplotlib - global legend and title aside subplots

I've started with matplot and managed some basic plots, but now I find it hard to discover how to do some stuff I need now :( ...
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How to overload std::swap()

std::swap() is used by many std containers (such as std::list and std::vector ) during sorting and even assignment. 4 A...