Add Override The Initial Sequence Value as a ruby til.

README.md

@@ -80,6 +80,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [FactoryGirl Sequences](ruby/factory-girl-sequences.md)
 - [Finding The Source of Ruby Methods](ruby/finding-the-source-of-ruby-methods.md)
 - [Limit Split](ruby/limit-split.md)
+- [Override The Initial Sequence Value](ruby/override-the-initial-sequence-value.md)
 - [Parallel Bundle Install](ruby/parallel-bundle-install.md)
 - [Squeeze Out The Extra Space](ruby/squeeze-out-the-extra-space.md)
 - [Summing Collections](ruby/summing-collections.md)

ruby/override-the-initial-sequence-value.md

@@ -0,0 +1,21 @@
+# Override The Initial Sequence Value
+
+[FactoryGirl sequences](https://github.com/thoughtbot/factory_girl/blob/master/GETTING_STARTED.md#sequences)
+can be defined with an initial starting value
+
+```ruby
+FactoryGirl.define do
+  sequence :email, 1000 do |n|
+    "person#{n}@example.com"
+  end
+end
+```
+
+thus:
+
+```ruby
+> FactoryGirl.generate :email
+=> "person1000@example.com"
+> FactoryGirl.generate :email
+=> "person1001@example.com"
+```