xe-utils/es/helperCreateMinMax.js

JavaScript 函数库、工具类

import isFunction from './isFunction'
import eqNull from './eqNull'
import get from './get'

import arrayEach from './arrayEach'

function helperCreateMinMax (handle) {
  return function (arr, iterate) {
    if (arr && arr.length) {
      var rest, itemIndex
      arrayEach(arr, function (itemVal, index) {
        if (iterate) {
          itemVal = isFunction(iterate) ? iterate(itemVal, index, arr) : get(itemVal, iterate)
        }
        if (!eqNull(itemVal) && (eqNull(rest) || handle(rest, itemVal))) {
          itemIndex = index
          rest = itemVal
        }
      })
      return arr[itemIndex]
    }
    return rest
  }
}

export default helperCreateMinMax