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Determine the number of NA values in a column
...r of NA values in a data frame column. Say my data frame is called df , and the name of the column I am considering is col . The way I have come up with is following:
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How to set the UITableView Section title programmatically (iPhone/iPad)?
...uilder using storyboards . The UITableView is setup with static cells and a number of different sections.
8 Answers
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UITableView Setting some cells as “unselectable”
...ableViewCellSelectionStyleNone. That should prevent it from highlighting, and you can also check that property in your tableView:didSelectRowAtIndexPath:.
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Adding an onclick function to go to url in JavaScript?
...if there is a way of adding an onclick function which will act as a link and go to a URL?
9 Answers
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Finding most changed files in Git
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you can use the git effort (from the git-extras package) command which shows statistics about how many commits per files (by commits and active days).
EDIT: git effort is just a bash script you can find here and adapt to your needs if you need something more special.
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How to silence output in a Bash script?
I have a program that outputs to stdout and would like to silence that output in a Bash script while piping to a file.
9 An...
Finding element's position relative to the document
... First,you need to decide whether to take account of border and margin according to box-sizing. Second, the collapsed margin should be considered. And last, there will be more complicated situation in the future which would make this answer worse.
– xianshenglu
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Most lightweight way to create a random string and a random hexadecimal number
What is the most lightweight way to create a random string of 30 characters like the following?
13 Answers
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google chrome extension :: console.log() from background page?
...orresponds to your extensions open Settings / Extensions or open a new tab and enter chrome://extensions. You will see something like this screenshot.
Under your extension click on the link background page. This opens a new window.
For the context menu sample the window has the title: _generate...
Remove all the children DOM elements in div
... @Eugene: Could you say more about that?
– Tom Anderson
Aug 28 '11 at 15:39
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@Tom: dojox.g...