Every story and comment from the Hacker News API, in a layout borrowed from 2001.
A comment on Should "Yes, delete it" be red, or green?. Parent comment
Scenario: Laptop's price is initially $800 and then increases to $850 before dropping to $825
Design 1: with columns Amount and Kind will just have a single row which will get modified with the latest value
Design 2: Will have 3 rows in the above case
Difference | Kind | Time stamp
800 | 'Laptop' | ts 1
+50 | 'Laptop' | ts 2
-25 | 'Laptop' | ts 3
So this latter design has 'undo' builtin
edit: formating
Scenario: Laptop's price is initially $800 and then increases to $850 before dropping to $825
Design 1: with columns Amount and Kind will just have a single row which will get modified with the latest value
Design 2: Will have 3 rows in the above case
Difference | Kind | Time stamp
800 | 'Laptop' | ts 1
+50 | 'Laptop' | ts 2
-25 | 'Laptop' | ts 3
So this latter design has 'undo' builtin
edit: formating