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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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Node.js and CPU intensive requests

...nd really like to write server side Javascript but something is keeping me from starting to use Node.js for my web application. ...
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Is there a Boolean data type in Microsoft SQL Server like there is in MySQL? [duplicate]

...compared using a comparison operator such as =, <> or IS NULL. e.g. SELECT a.answer_body FROM answers AS a WHERE a.is_accepted = 0; From a formatting perspective, a bit value is typically displayed as 0 or 1 in client software. When a more user-friendly format is required, and it can't ...
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What is this CSS selector? [class*=“span”]

I saw this selector in Twitter Bootstrap: 4 Answers 4 ...
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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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Work on a remote project with Eclipse via SSH

...pective in Eclipse: Define a new connection and choose SSH Only from the Select Remote System Type screen in the New Connection dialog. Enter the connection information then choose Finish. Connect to the new host. (Assumes SSH keys are already setup.) Once connected, drill down into the host's Sft...
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How do I expand the output display to see more columns of a pandas DataFrame?

... Try this: pd.set_option('display.expand_frame_repr', False) From the documentation: display.expand_frame_repr : boolean Whether to print out the full DataFrame repr for wide DataFrames across multiple lines, max_columns is still respected, but the output will wrap-around acro...
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How should I cast in VB.NET?

... Dim myList AS ArrayList=new ArrayList When you write (From e In myList select CType(e.Name,String)).ToArray() it doesn't work. I came to write ... select CType(e.Name.ToString,String)).ToArray() and I retrieved my smile. – Bellash Mar 25 '14 at 21:13 ...
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Error message 'Unable to load one or more of the requested types. Retrieve the LoaderExceptions prop

...an also happen if your referenced DLL is "blocked". Right click on it, and select "unblock" – Ben Jun 10 '10 at 10:05 4 ...
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Linq style “For Each” [duplicate]

...ibe(...) seems to be around 50 times slower than ToList().ForEach(...) and Select(...).ToList() – qujck Jan 6 '14 at 16:44 ...