styled-components/src/utils/interleave.js

Visual primitives for the component age. Use the best bits of ES6 and CSS to style your apps without stress 💅

// @flow
import type { Interpolation } from '../types'

export default (
  strings: Array<string>,
  interpolations: Array<Interpolation>
): Array<Interpolation> =>
  interpolations.reduce(
    (array: Array<Interpolation>, interp: Interpolation, i: number) =>
      array.concat(interp, strings[i + 1]),
    [strings[0]]
  )