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2018-01-05.md

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Trending in Stackoverflow

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Date: 2018-01-05

  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. Uploading both data and files in one form using Ajax?

    tags: javascript, jquery, ajax, forms

    250 votes, 4 answers and 332361 views

    \r\n I'm using jQuery and Ajax for my forms to submit data and files but I'm not sure how to send both data and files in one form?\n\nI currently do almost the same with both methods but the way in which the ...\r\n

  3. Difference between add(), replace(), and addToBackStack()

    tags: android, android-fragments

    213 votes, 4 answers and 99147 views

    \r\n What is the main difference between calling these methods:\n\nfragmentTransaction.addToBackStack(name);\nfragmentTransaction.replace(containerViewId, fragment, tag);\nfragmentTransaction.add(...\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. Configure Flask dev server to be visible across the network

    tags: python, flask, werkzeug

    211 votes, 5 answers and 116873 views

    \r\n I'm not sure if this is Flask specific, but when I run an app in dev mode (http://localhost:5000), I cannot access it from other machines on the network (with http://[dev-host-ip]:5000). With Rails in ...\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. How to prettyprint a JSON file?

    tags: python, json, pretty-print

    412 votes, 6 answers and 350614 views

    \r\n I have a JSON file that is a mess that I want to prettyprint-- what's the easiest way to do this in python? I know PrettyPrint takes an "object", which I think can be a file, but I don't know how to ...\r\n

  8. What's the difference between implementation and compile in gradle

    tags: android, android-studio, gradle, build.gradle, gradle-plugin

    228 votes, 2 answers and 33397 views

    \r\n After updating to Android Studio 3.0 and creating a new project, I noticed that in build.gradle there is a new way to add new dependencies instead of compile there is implementation and instead of ...\r\n

  9. Resetting remote to a certain commit

    tags: git

    329 votes, 7 answers and 213038 views

    \r\n I want to discard all changes done after commit .\nSo I did:\n\ngit reset --hard \r\nNow I want to do the same with my remote. How can I do this? I have done some ...\r\n

  10. Difference between Python's Generators and Iterators

    tags: python, iterator, generator

    317 votes, 8 answers and 73811 views

    \r\n What is the difference between iterators and generators? Some examples for when you would use each case would be helpful.\r\n