front-tool

Install

[npm][]:

npm install front-tool

Use

import {isIE, inBrowser, isIE, isIE9, isEdge, isAndroid, isIOS, ...} from 'front-tool'

API

hasProto [type Boolan]  // 判断是否存在隐形原型'__proto__'

inBrowser [type Boolean] // 判断是否是存在window对象

isIE = UA [type Boolean] // 判断是否是IE浏览器

isIE9 [type Boolean]

isEdge [type Boolean]

isAndroid [type Boolean]

isIOS [type Boolean]

isChrome [type Boolean]

isFF [type Boolean] // 是否是火狐浏览器

isUndef [type Function(return Boolean)] //判断是否是未定义

isDef [type Function(return Boolean)] //判断是否是已定义

isTrue [type Function(return Boolean)]

isFalse [type Function(return Boolean)]

isObject [type Function(return Boolean)] // 判断是否为对象 如 Array Object Number String等js内部对象

isPlainObject [type Function(return Boolean)] // 判断是否是{}对象 如 isPlainObject({}) -> true

isRegExp [type Function(return Boolean)] // 判断是否是正则对象
  
isPromise [type Function(return Boolean)] // 判断是否是Promise对象

toString [type Function(return String)] // 转为字符串 如 toString({a: 3}) -> '{a: 3}' toString([3]) -> '[3]' toString(3) -> '3'

toNumber [type Function(return Number)] // 转为数字

export const toArray = (list, start) => {
  start = start || 0
  let i = list.length - start
  let ret = new Array(i)
  while (i--) {
    ret[i] = list[i + start]
  }
  return ret
}

extend [type Function(return Object)] // 合并属性到目标对象

  extend(to, _from) // to 目标对象 _from 源对象

  extend({a: 2, b: 3}, {b: 4, c: 5}) -> {a: 2, b: 4, c: 5}

toObject [type Function(return Object)] // 数组对象转为简单对象

  toObject([{a:2, b: 3}, {c: 4}, {b: 5, e: 6}]) -> {a:2, b: 5, c:4, e: 6}

identity [type Function] // 返回同样值 identity(3) -> 3 identity({}) -> {} identity([3]) -> [3]

no [type Function(return false)] // 返回false值

merge [type Function(return Object)] // 合并对象到目标对象 默认第一个参数为目标对象并返回对象
  
  merge(obj2, obj3, obj4, ...)

  merge({a: 2, b: 4}, {a: 3, c: 5}, {d: 5, e: 6}) -> {a: 3, b: 4, c: 5, d: 5, e: 6}