Merge pull request #292 from sogaiu/add-mapcat-examples

Add examples for mapcat

Author: bakpakin

examples/mapcat.janet

@@ -0,0 +1,9 @@
+# consolidate with array/concat after applying identity to each
+(mapcat identity [[-2 -1] [0 1 2] [7 8]]) # -> @[-2 -1 0 1 2 7 8]
+
+# multiple data structures can be handled
+(mapcat tuple [:x :y] [-1 1]) # -> @[:x -1 :y 1]
+
+# function may not be applied to all values (e.g. :z)
+(mapcat |(tuple $0 $1 $2) [:a :b] [:x :y :z] [0 1]) # -> @[:a :x 0 :b :y 1]
+