All files utils.js

38.64% Statements 17/44
13.33% Branches 4/30
75% Functions 3/4
38.1% Lines 16/42

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const isType = type => obj =>
  obj != null && Object.prototype.toString.call(obj) === `[object ${type}]`
// FIXME: isFn, isArr is incorrect
export const isFn = isType('Function')
export const isArr = Array.isArray || isType('Array')
export const isPlainObj = isType('Object')
export const isStr = isType('String')
export const isBool = isType('Boolean')
export const isNum = isType('Number')
export const isObj = val => typeof val === 'object'
export const isRegExp = isType('RegExp')
 
const isArray = isArr
const keyList = Object.keys
const hasProp = Object.prototype.hasOwnProperty
 
export const isEqual = (a, b) => {
  Eif (a === b) {
    return true
  }
  if (a && b && typeof a === 'object' && typeof b === 'object') {
    const arrA = isArray(a)
    const arrB = isArray(b)
    let i
    let length
    let key
 
    if (arrA && arrB) {
      length = a.length
      if (length !== b.length) {
        return false
      }
      for (i = length; i-- !== 0; ) {
        if (!isEqual(a[i], b[i])) {
          return false
        }
      }
      return true
    }
 
    if (arrA !== arrB) {
      return false
    }
 
    const keys = keyList(a)
    length = keys.length
 
    if (length !== keyList(b).length) {
      return false
    }
 
    for (i = length; i-- !== 0; ) {
      if (!hasProp.call(b, keys[i])) {
        return false
      }
    }
    for (i = length; i-- !== 0; ) {
      key = keys[i]
      if (!isEqual(a[key], b[key])) {
        return false
      }
    }
 
    return true
  }
  return a !== a && b !== b
}