SoxFace · October 10, 2019 10:20 · Oct 10, 2019 · Oct 10, 2019 · Oct 10, 2019 · Oct 10, 2019
diff --git a/2019OCT10.rb b/2019OCT10.rb
@@ -16,6 +16,7 @@ def example(a) # function a
 # 1) write the same thing but replace that logic using ruby each method
 # 2) write the same thing but avoid modifying the array, hint: use map
 # hint: (0..a).each { |i| ... } and (0..a).map { |i| ... }
+# https://www.rubyguides.com/2018/10/ruby-map-method/
 
 # 1) using each
 

diff --git a/2019OCT10.rb b/2019OCT10.rb
@@ -38,5 +38,4 @@ def exampleEach(a)
   (0..a).map { |i|
     b[i] = i
     }
-  return b
 end
diff --git a/2019OCT10.rb b/2019OCT10.rb
@@ -13,18 +13,30 @@ def example(a) # function a
 
 # => [0, 1, 2, 3, 4]
 
-# another way of doing it
-# again I'm unsure why b.push[i] is assigned to i
+# 1) write the same thing but replace that logic using ruby each method
+# 2) write the same thing but avoid modifying the array, hint: use map
+# hint: (0..a).each { |i| ... } and (0..a).map { |i| ... }
 
-def examplePush(a)
+# 1) using each
+
+def exampleEach(a)
   b = []
 
-  for i in 0..a
-    b.push[i] = i
-  end
+  (0..a).each { |i|  
+      b[i] = i
+    }
 
   return b
+
 end
 
-example(5)
-
+# 2) using map
+
+def exampleEach(a)
+  b = []
+
+  (0..a).map { |i|
+    b[i] = i
+    }
+  return b
+end
diff --git a/2019OCT10.rb b/2019OCT10.rb
@@ -13,6 +13,9 @@ def example(a) # function a
 
 # => [0, 1, 2, 3, 4]
 
+# another way of doing it
+# again I'm unsure why b.push[i] is assigned to i
+
 def examplePush(a)
   b = []
 

diff --git a/2019OCT10.rb b/2019OCT10.rb
@@ -0,0 +1,27 @@
+def example(a) # function a
+  b = [] # b is an empty array
+
+  for i in 0..a # for every (i)ndex in the range 0 to a (or 4 in this example)
+    b[i] = i # not clear how this works. I think it's a shorthand for .push
+             # More importantly, I don't know why you have to assign the position of the index in the array to i
+  end # end of loop
+
+  return b #return b
+end # end of function
+
+example(4) # calls a, loops, pushes 0, 1, 2, 3, 4 into the array b
+
+# => [0, 1, 2, 3, 4]
+
+def examplePush(a)
+  b = []
+
+  for i in 0..a
+    b.push[i] = i
+  end
+
+  return b
+end
+
+example(5)
+
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