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Is there a way to iterate over a dictionary?

...d a key in order to get a value . But how can I iterate over all keys and values in a NSDictionary , so that I know what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there something similar in Objective-C ? ...
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Why specify @charset “UTF-8”; in your CSS file?

... It tells the browser to read the css file as UTF-8. This is handy if your CSS contains unicode characters and not only ASCII. Using it in the meta tag is fine, but only for pages that include that meta tag. Read about the rules for character set resolution of CSS files at the w3c spe...
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What is the difference between exit and return? [duplicate]

What is difference between return and exit statement in C programming when called from anywhere in a C program? 4 Answers ...
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Specify an SSH key for git push for a given domain

...ey. AFAIK, I can't solve this using ~/.ssh/config , because the user name and server name are identical in both cases. As I mostly use my own private key, I have that defined in ~/.ssh/config for git@git.company.com . Does anyone know of a way to override the key that is used for a single git ...
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What are the differences between node.js and node?

...js. nodejs is what you want, however it is arguably better to have the command be called node for compatibility with scripts that use #!/usr/bin/env node. You can either just create a symlink in your path: sudo ln -s `which nodejs` /usr/local/bin/node Or you could install nvm and then use it to ins...
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invalid target release: 1.7

... On a Mac, where jdk6 and jdk7 are installed, this can be forced in ~/.profile: export JAVA_HOME=$(/usr/libexec/java_home -v 1.7) – Hank Feb 10 '14 at 20:31 ...
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.NET console application as Windows service

I have console application and would like to run it as Windows service. VS2010 has project template which allow to attach console project and build Windows service. I would like to not add separated service project and if possible integrate service code into console application to keep console appl...
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Why is conversion from string constant to 'char*' valid in C but invalid in C++

The C++11 Standard (ISO/IEC 14882:2011) says in § C.1.1 : 3 Answers 3 ...
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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. ...
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How to get a string after a specific substring?

...ring.split("world",1)[1] split takes the word(or character) to split on and optionally a limit to the number of splits. In this example split on "world" and limit it to only one split. share | i...