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Xcode 4 - slow performance

...ake sure Xcode isn't open. Now find your project file. Right-click on it, and select Show Package Contents. Next, delete project.xcworkspace. Open Xcode and enjoy faster performance! Thanks to: http://meachware.blogspot.com/2011/06/speed-up-xcode-4.html Edit: I've gotten several commen...
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How do you remove duplicates from a list whilst preserving order?

...o seen_add instead of just calling seen.add? Python is a dynamic language, and resolving seen.add each iteration is more costly than resolving a local variable. seen.add could have changed between iterations, and the runtime isn't smart enough to rule that out. To play it safe, it has to check the o...
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What's the difference between using INDEX vs KEY in MySQL?

I know how to use INDEX as in the following code. And I know how to use foreign key and primary key . 5 Answers ...
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Using CSS to insert text

I'm relatively new to CSS, and have used it to change the style and formatting of text. 4 Answers ...
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How do you declare an interface in C++?

... To expand on the answer by bradtgmurray, you may want to make one exception to the pure virtual method list of your interface by adding a virtual destructor. This allows you to pass pointer ownership to another party without expos...
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Ruby on Rails: How do you add add zeros in front of a number if it's under 10?

...e '%02d' means to print an integer (d) taking up at least 2 characters (2) and left-padding with zeros instead of spaces (0). share | improve this answer | follow ...
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How does the vim “write with sudo” trick work?

Many of you have probably seen the command that allows you to write on a file that needs root permission, even when you forgot to open vim with sudo: ...
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Loop inside React JSX

... as an argument – leading to a syntax error. But you can make an array, and then pass that in as an argument: var rows = []; for (var i = 0; i < numrows; i++) { rows.push(ObjectRow()); } return tbody(rows); You can use basically the same structure when working with JSX: var rows = []...
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Making Maven run all tests, even when some fail

...le than you are safe using -fae. Otherwise, if you have multiple modules, and if you want all of them tested (even the ones that depend on the failing tests module), you should run mvn clean install -fn. -fae will continue with the module that has a failing test (will run all other tests), but all ...
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relative path in BAT script

...sewhere (XP, Vista oder Windwos 8 --> I don't know but: Microsoft logic and I couldn't find any docs about it ;)). However, I found that I had to put quotation marks around it ("%~dp0\bin\Iris.exe") as the path had a whitespace in it :) Just to be really sure it works on every computer. ...