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Check that Field Exists with MongoDB

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jQuery equivalent of getting the context of a Canvas

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Set default CRAN mirror permanent in R

...esources/etc/. The file may not exist, or you may see the following lines commented out : # set a CRAN mirror # local({r <- getOption("repos") # r["CRAN"] <- "http://my.local.cran" # options(repos=r)}) So remove the comment marks and change "http://my.local.cran" to the correct...
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AngularJS ng-include does not include view unless passed in $scope

...ying to figure this one out. Of course it needs to be a string. That makes complete sense. – Code Whisperer May 16 '13 at 18:38 ...
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How to trigger the onclick event of a marker on a Google Maps V3?

... @Saboor Awan Try to ask a specific question about this as comments are not the best way to sort this out. – AlexV Sep 20 '11 at 13:22 ...
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List distinct values in a vector in R

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how to override left:0 using CSS or Jquery?

...d you will "reset" it. .elem { left: auto; } Make sure that the above comes after the original CSS file. share | improve this answer | follow | ...
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Redis key naming conventions?

... "user:1000:password". I like to use dots for multi-words fields, like in "comment:1234:reply.to". Are you able to query for just the beginning of the key to return all users? If you mean someting like directly querying for all keys which starts with user: there is a keys command for that. T...
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What are the best practices for SQLite on Android?

...e issue. Also, how do you manage the single connection? I had a much more complicated solution initially, but I've since amended that. Take a look here: touchlab.co/uncategorized/single-sqlite-connection – Kevin Galligan Oct 15 '11 at 17:46 ...
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Ignore files that have already been committed to a Git repository [duplicate]

...hed filename To untrack every file that is now in your .gitignore: First commit any outstanding code changes, and then, run this command: git rm -r --cached . This removes any changed files from the index(staging area), then just run: git add . Commit it: git commit -m ".gitignore is now...