react-ionicons/docs/node_modules/styled-components/src/no-parser/stringifyRules.js

A React SVG ionicon component

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

const stringifyRules = (
  rules: Array<Interpolation>,
  selector: ?string,
  prefix: ?string,
): string => (
  rules
    .reduce((str: string, partial: Interpolation, index: number): string => (
      str +
      // NOTE: This is to not prefix keyframes with the animation name
      ((index > 0 || !prefix) && selector ? selector : '') +
      (
        (partial && Array.isArray(partial)) ?
          partial.join('') :
          partial.toString()
      )
    ), '')
)

export default stringifyRules