* Added Blockchain Programming Book
* Added the packt link
* Added a Kotlin Playground
* The Kotlin Playground
* Added a Flutter Playground
* Removed the Leadin Slash
* Added Ruby Playground
* Added a new line at the end of free programming playgrounds
* Fixed the spacing in free-programming-books-fa_IR.md
* Fixed More errors in the above file
* Errors fixed in free-programming-books-fa_IR.md
* Some more changes
* Restored the previous farsi file
* Added an Elm Playground
* Added Blockchain Programming Book
* Added the packt link
* Added a Kotlin Playground
* The Kotlin Playground
* Added a Flutter Playground
* Removed the Leadin Slash
* Added Ruby Playground
* Added a new line at the end of free programming playgrounds
* Fixed the spacing in free-programming-books-fa_IR.md
* Fixed More errors in the above file
* Errors fixed in free-programming-books-fa_IR.md
* Some more changes
* Restored the previous farsi file
* Added Kaggle Python course
* Add Python Runestone to interactive tutorials
* added author
* Added Python and Java playground
* add space back
* lower cased name
* fixed capitalization for Java and JavaScript
* Added Rextester to R Interactive Playgrounds
* swapped order
* switched order
* Added Blockchain Programming Book
* Added the packt link
* Added a Kotlin Playground
* The Kotlin Playground
* Added a Flutter Playground
* Removed the Leadin Slash
* Add "What I Wish I Knew When Learning Haskell"
Follow up #3173.
* Update free-programming-books-zh.md
Follow up #3330.
* added competitive programming link
Follow up #3398.
* Update kotlin playground
The current kotlin playground is obsolete.
Updated to the new playground link.
* remove '/' to satisfy linter
Always check the Travis-CI output!
Co-authored-by: Eric Hellman <eric@hellman.net>
* Move a playground link to CSS section
FlexBox is a CSS feature.
This move is consistent with other files.
* Fix index in english free-programming-playgrounds
* Move a section according to alphabetical order
* Remove offline link pyfiddle.io
Shutdown confirmed: https://github.com/priyankcommits/pyfiddleio/issues/7
* Update free-programming-playgrounds.md
Added codesandbox.io under React (and removed the react reference from its listing on JavaScript).
Added a Java section and linked to repl.it
repl.it actually has sandboxes for most of the languages listed here, and maybe some others, but I didn't add them all in. The Swing support for Java is new, and has some bugs. They didn't respond to my report, so I think they are spread a little thin.
* add spaces to satisfy linter
* add space to satisfy linter
Co-authored-by: Eric Hellman <eric@hellman.net>
David Ordás
Eric Hellman
cyril
ErvinaDe
Harshit-lab
If-Then-andSometimesElse
Kevin Webb
Jacob Marshall
Shabab Karim
Vyshnav K S
Bhaskar Maity
Ku Lok Sun
Supriyo Mahanta
Gabriel Machado
chessboards
WISNU GINANJAR SAPUTRA
Karthikeyan Govindaraj
Gaurav Deshpande
João G. Packer
Nat Kuhn
Ankit
Victor Λntonio
Sekito Lv
Ioannis Cherouvim
cyril
Razor
Alex
Gus Uy
borgified
brannx
Alexander Fefelov
NicoleSingular
Thyago Luciano
Devinsuit
Cristian Stroparo
Quy Le Ngoc
Drew Smith
BenSandeen
Aramis S. H. Fernandes
lerthe61
Victor Felder