Javascript philosophy and execution flow is quite different to Perl:
- With Perl it's strongly discouraged to wrap an operation in a `try { ... }` block without a `catch { ... }` block following it, because any errors would be hidden and the operation might silently fail.
- With Javascript and Promises, many operations are automatically wrapped in a `try { ... }` block, and are not even executed if they don't have a `.then()` or a `.catch()` added, so they silently fail!
Knex basics
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