d3dc / babel-preset-techno-babel

A babel preset that adds stable future js operators for terse functional programming

babel-preset-techno-babel

babel needs more babble.

New operators

• |> - pipeline

  • compose function calls left to right instead of right to left
  • array |> sortBy(_.name) |> partitionBy(_.age)

• ?? - nullish coalescing

  • stricter maybe || 'default'
  • maybe ?? 'default'

• ?. - optional chaining

  • only access properties if the receiver is defined
  • user?.address?.state

Logical assignment operators

• ||=
• &&=
• ??=

New blocks

• do
  • evaluates a block as an expressions
  • keeps your scopes isolated - let statements don't leak

Misc

• export default from
  • export Footer from './Footer'
• numeric literal separator
  • 9_000_000