gymnastjs/gymnast

import 'babel-polyfill'
 
const allListeners: { [media: string]: Array<({}) => void> } = {}
 
Function `matchMedia` has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
global.matchMedia = function matchMedia(media: string) {
  allListeners[media] = allListeners[media] || []
 
  return {
    media,
    matches: false,
    addListener: listener => allListeners[media].push(listener),
    removeListener: listener => {
      let i = allListeners[media].length - 1
 
      while (i >= 0) {
        if (allListeners[media][i] === listener) {
          allListeners[media].splice(i, 1)
        }
        i -= 1
      }
    },
    onchange: () => allListeners[media].forEach(listener => listener({})),
  }
}