react-blips/src/utils/shallowEqual.js

Official React bindings for Blips

export function shallowEqual (objA, objB) {
  if (objA === objB) return true

  if (
    typeof objA !== 'object' ||
    objA === null ||
    typeof objB !== 'object' ||
    objB === null
  ) { return false }

  const keysA = Object.keys(objA)
  const keysB = Object.keys(objB)

  if (keysA.length !== keysB.length) return false

  for (let idx = 0; idx < keysA.length; idx++) {
    const key = keysA[idx]
    if (!objB.hasOwnProperty(key) || objA[key] !== objB[key]) return false
  }

  return true
}