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Trending in Stackoverflow

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Date: 2017-12-21

  1. How do I delete (unset) an exported environment variable?

    tags: linux, environment-variables, unset

    967 votes, 3 answers and 547486 views

    \r\n Before installing gnuplot I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src.\n\nDuring the installation something went wrong; now I want to remove the GNUPLOT_DRIVER_DIR ...\r\n

  2. What do the icons in Eclipse mean?

    tags: eclipse, icons

    231 votes, 3 answers and 158572 views

    \r\n What do the icons in the Eclipse debugger mean?\nWhat do the icon decorators in Eclipse mean?\nWhat do the icons in Eclipse's Package Explorer mean?\nWhat do the little letters on top of Eclipse icons ...\r\n

  3. Generate a UUID on iOS from Swift

    tags: ios, swift, cocoa-touch, guid, core-foundation

    184 votes, 5 answers and 78750 views

    \r\n In my iOS Swift app I want to generate random UUID (GUID) strings for use as a table key, and this snippet appears to work:\n\nlet uuid = CFUUIDCreateString(nil, CFUUIDCreate(nil))\r\nIs this safe? \n\nOr ...\r\n

  4. How can Python iterate over dictionaries with 'for' loops using only the dict keys?

    tags: python, python-2.7, dictionary, key, iteration

    1657 votes, 12 answers and 2233477 views

    \r\n I am a bit puzzled by the following code:\n\nd = {'x': 1, 'y': 2, 'z': 3} \nfor key in d:\n print key, 'corresponds to', d[key]\r\nWhat I don't understand is the key portion. How does Python recognize ...\r\n

  5. How do I apply a perspective transform to a UIView?

    tags: iphone, ios, cocoa-touch, core-animation

    187 votes, 5 answers and 99946 views

    \r\n I'm looking to perform a perspective transform on a UIView (such as seen in coverflow)\n\nDoes anyonew know if this is possible? \n\nI've investigated using CALayer and have run through all the pragmatic ...\r\n

  6. SQL query to select dates between two dates

    tags: sql, sql-server, tsql, datetime, sql-server-2005

    184 votes, 19 answers and 1195748 views

    \r\n I have a start_date and end_date. I want to get the list of dates in between these two dates. Can anyone help me pointing the mistake in my query.\n\nselect Date,TotalAllowance \nfrom Calculation \nwhere ...\r\n

  7. Chmod 777 to a folder and all contents

    tags: web, permissions, file-permissions, chmod

    222 votes, 7 answers and 1030889 views

    \r\n I have a web directory /www and a folder in that directory called store.\n\nWithin store are several files and folders. I want to give the folder store and all files and folders within the store folder ...\r\n

  8. Load and execution sequence of a web page?

    tags: javascript, html, css

    210 votes, 7 answers and 121000 views

    \r\n I have done some web based projects, but I don't think too much about the load and execution sequence of an ordinary web page. But now I need to know detail. It's hard to find answers from Google or ...\r\n

  9. Scalaz iteratees: “Lifting” EnumeratorT to match IterateeT for a “bigger” monad

    tags:

    192 votes, 0 answers and 2979 views

    \r\n If I have an EnumeratorT and a corresponding IterateeT I can run them together:\n\nval en: EnumeratorT[String, Task] = EnumeratorT.enumList(List("a", "b", "c"))\nval it: IterateeT[String, Task, Int] = ...\r\n

  10. getWidth() and getHeight() of View returns 0

    tags: java, android, android-layout, getter

    330 votes, 8 answers and 216966 views

    \r\n I am creating all of the elements in my android project dynamically. I am trying to get the width and height of a button so that I can rotate that button around. I am just trying to learn how to work ...\r\n