294 lines
7.5 KiB
JavaScript
294 lines
7.5 KiB
JavaScript
/**
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* 简单处理对象拷贝
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* @param {Obejct} 被拷贝对象
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* @@return {Object} 拷贝对象
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*/
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export const deepCopy = (val) => {
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return JSON.parse(JSON.stringify(val))
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}
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/**
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* 过滤数字类型
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* @param {String} format 数字类型
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* @@return {Boolean} 返回是否为数字类型
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*/
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export const typeFilter = (format) => {
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return format === 'int' || format === 'double' || format === 'number' || format === 'timestamp';
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}
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/**
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* 把 value 转换成指定的类型,用于处理初始值,原因是初始值需要入库不能为 undefined
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* @param {String} key 字段名
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* @param {any} value 字段值
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* @param {Object} rules 表单校验规则
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*/
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export const getValue = (key, value, rules) => {
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const isRuleNumType = rules.find(val => val.format && typeFilter(val.format));
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const isRuleBoolType = rules.find(val => (val.format && val.format === 'boolean') || val.format === 'bool');
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// 输入类型为 number
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if (!!isRuleNumType) {
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if (!value && value !== 0) {
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value = null
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} else {
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value = isNumber(Number(value)) ? Number(value) : value
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}
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}
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// 输入类型为 boolean
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if (!!isRuleBoolType) {
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value = isBoolean(value) ? value : false
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}
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return value;
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}
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/**
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* 获取表单数据
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* @param {String|Array} name 真实名称,需要使用 realName 获取
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* @param {Object} data 原始数据
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* @param {any} value 需要设置的值
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*/
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export const setDataValue = (field, formdata, value) => {
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formdata[field] = value
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return value || ''
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}
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/**
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* 获取表单数据
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* @param {String|Array} field 真实名称,需要使用 realName 获取
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* @param {Object} data 原始数据
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*/
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export const getDataValue = (field, data) => {
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return objGet(data, field)
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}
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/**
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* 获取表单类型
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* @param {String|Array} field 真实名称,需要使用 realName 获取
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*/
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export const getDataValueType = (field, data) => {
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const value = getDataValue(field, data)
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return {
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type: type(value),
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value
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}
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}
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/**
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* 获取表单可用的真实name
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* @param {String|Array} name 表单name
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* @@return {String} 表单可用的真实name
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*/
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export const realName = (name, data = {}) => {
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const base_name = _basePath(name)
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if (typeof base_name === 'object' && Array.isArray(base_name) && base_name.length > 1) {
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const realname = base_name.reduce((a, b) => a += `#${b}`, '_formdata_')
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return realname
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}
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return base_name[0] || name
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}
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/**
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* 判断是否表单可用的真实name
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* @param {String|Array} name 表单name
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* @@return {String} 表单可用的真实name
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*/
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export const isRealName = (name) => {
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const reg = /^_formdata_#*/
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return reg.test(name)
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}
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/**
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* 获取表单数据的原始格式
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* @@return {Object|Array} object 需要解析的数据
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*/
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export const rawData = (object = {}, name) => {
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let newData = JSON.parse(JSON.stringify(object))
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let formData = {}
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for(let i in newData){
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let path = name2arr(i)
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objSet(formData,path,newData[i])
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}
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return formData
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}
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/**
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* 真实name还原为 array
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* @param {*} name
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*/
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export const name2arr = (name) => {
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let field = name.replace('_formdata_#', '')
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field = field.split('#').map(v => (isNumber(v) ? Number(v) : v))
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return field
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}
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/**
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* 对象中设置值
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* @param {Object|Array} object 源数据
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* @param {String| Array} path 'a.b.c' 或 ['a',0,'b','c']
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* @param {String} value 需要设置的值
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*/
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export const objSet = (object, path, value) => {
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if (typeof object !== 'object') return object;
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_basePath(path).reduce((o, k, i, _) => {
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if (i === _.length - 1) {
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// 若遍历结束直接赋值
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o[k] = value
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return null
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} else if (k in o) {
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// 若存在对应路径,则返回找到的对象,进行下一次遍历
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return o[k]
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} else {
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// 若不存在对应路径,则创建对应对象,若下一路径是数字,新对象赋值为空数组,否则赋值为空对象
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o[k] = /^[0-9]{1,}$/.test(_[i + 1]) ? [] : {}
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return o[k]
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}
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}, object)
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// 返回object
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return object;
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}
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// 处理 path, path有三种形式:'a[0].b.c'、'a.0.b.c' 和 ['a','0','b','c'],需要统一处理成数组,便于后续使用
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function _basePath(path) {
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// 若是数组,则直接返回
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if (Array.isArray(path)) return path
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// 若有 '[',']',则替换成将 '[' 替换成 '.',去掉 ']'
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return path.replace(/\[/g, '.').replace(/\]/g, '').split('.')
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}
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/**
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* 从对象中获取值
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* @param {Object|Array} object 源数据
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* @param {String| Array} path 'a.b.c' 或 ['a',0,'b','c']
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* @param {String} defaultVal 如果无法从调用链中获取值的默认值
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*/
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export const objGet = (object, path, defaultVal = 'undefined') => {
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// 先将path处理成统一格式
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let newPath = _basePath(path)
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// 递归处理,返回最后结果
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let val = newPath.reduce((o, k) => {
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return (o || {})[k]
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}, object);
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return !val || val !== undefined ? val : defaultVal
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}
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/**
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* 是否为 number 类型
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* @param {any} num 需要判断的值
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* @return {Boolean} 是否为 number
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*/
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export const isNumber = (num) => {
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return !isNaN(Number(num))
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}
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/**
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* 是否为 boolean 类型
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* @param {any} bool 需要判断的值
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* @return {Boolean} 是否为 boolean
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*/
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export const isBoolean = (bool) => {
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return (typeof bool === 'boolean')
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}
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/**
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* 是否有必填字段
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* @param {Object} rules 规则
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* @return {Boolean} 是否有必填字段
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*/
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export const isRequiredField = (rules) => {
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let isNoField = false;
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for (let i = 0; i < rules.length; i++) {
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const ruleData = rules[i];
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if (ruleData.required) {
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isNoField = true;
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break;
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}
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}
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return isNoField;
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}
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/**
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* 获取数据类型
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* @param {Any} obj 需要获取数据类型的值
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*/
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export const type = (obj) => {
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var class2type = {};
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// 生成class2type映射
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"Boolean Number String Function Array Date RegExp Object Error".split(" ").map(function(item, index) {
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class2type["[object " + item + "]"] = item.toLowerCase();
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})
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if (obj == null) {
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return obj + "";
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}
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return typeof obj === "object" || typeof obj === "function" ?
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class2type[Object.prototype.toString.call(obj)] || "object" :
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typeof obj;
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}
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/**
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* 判断两个值是否相等
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* @param {any} a 值
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* @param {any} b 值
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* @return {Boolean} 是否相等
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*/
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export const isEqual = (a, b) => {
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//如果a和b本来就全等
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if (a === b) {
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//判断是否为0和-0
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return a !== 0 || 1 / a === 1 / b;
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}
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//判断是否为null和undefined
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if (a == null || b == null) {
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return a === b;
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}
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//接下来判断a和b的数据类型
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var classNameA = toString.call(a),
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classNameB = toString.call(b);
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//如果数据类型不相等,则返回false
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if (classNameA !== classNameB) {
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return false;
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}
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//如果数据类型相等,再根据不同数据类型分别判断
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switch (classNameA) {
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case '[object RegExp]':
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case '[object String]':
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//进行字符串转换比较
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return '' + a === '' + b;
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case '[object Number]':
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//进行数字转换比较,判断是否为NaN
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if (+a !== +a) {
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return +b !== +b;
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}
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//判断是否为0或-0
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return +a === 0 ? 1 / +a === 1 / b : +a === +b;
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case '[object Date]':
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case '[object Boolean]':
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return +a === +b;
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}
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//如果是对象类型
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if (classNameA == '[object Object]') {
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//获取a和b的属性长度
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var propsA = Object.getOwnPropertyNames(a),
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propsB = Object.getOwnPropertyNames(b);
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if (propsA.length != propsB.length) {
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return false;
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}
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for (var i = 0; i < propsA.length; i++) {
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var propName = propsA[i];
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//如果对应属性对应值不相等,则返回false
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if (a[propName] !== b[propName]) {
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return false;
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}
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}
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return true;
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}
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//如果是数组类型
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if (classNameA == '[object Array]') {
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if (a.toString() == b.toString()) {
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return true;
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}
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return false;
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}
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}
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