Add R-Fiddle to playgrounds (#2632)

Add R section to playground and add R-Fiddle to it.

Add R-Fiddle to playgrounds (#2632)
Add R section to playground and add R-Fiddle to it.
6d930f34 · NicoleSingular · eshellman · 7edba3f1 · 6d930f34
隐藏空白更改
内联并排

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free-programming-playgrounds.md free-programming-playgrounds.md +6 -0

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--- a/free-programming-playgrounds.md
+++ b/free-programming-playgrounds.md
@@ -13,6 +13,7 @@
 * [Perl](#perl)
 * [PHP](#php)
 * [Python](#python)
+* [R](#r)
 * [Ruby](#ruby)
 * [Rust](#rust)
 * [SQL](#sql)
@@ -95,6 +96,11 @@
 * [Pyfiddle](https://pyfiddle.io)


+### R
+
+* [R-Fiddle](http://www.r-fiddle.org)
+
+
 ### Ruby

 * [Codepad](http://codepad.org)