/** * @description: 判断值是否未某个类型 */ export function is(val: unknown, type: string) { return Object.prototype.toString.call(val) === `[object ${type}]` } /** * @description: 是否为函数 */ export function isFunction any>(val: unknown): val is T { return is(val, 'Function') } /** * @description: 是否已定义 */ export const isDef = (val?: T): val is T => { return typeof val !== 'undefined' } /** * @description: 是否未定义 */ export const isUnDef = (val?: T): val is T => { return !isDef(val) } /** * @description: 是否为对象 */ export const isObject = (val: any): val is Record => { return val !== null && is(val, 'Object') } /** * @description: 是否为时间 */ export function isDate(val: unknown): val is Date { return is(val, 'Date') } /** * @description: 是否为数值 */ export function isNumber(val: unknown): val is number { return is(val, 'Number') } /** * @description: 是否为AsyncFunction */ export function isAsyncFunction(val: unknown): val is Promise { return is(val, 'AsyncFunction') } /** * @description: 是否为promise */ export function isPromise(val: unknown): val is Promise { return is(val, 'Promise') && isObject(val) && isFunction(val.then) && isFunction(val.catch) } /** * @description: 是否为字符串 */ export function isString(val: unknown): val is string { return is(val, 'String') } /** * @description: 是否为boolean类型 */ export function isBoolean(val: unknown): val is boolean { return is(val, 'Boolean') } /** * @description: 是否为数组 */ export function isArray(val: any): val is Array { return val && Array.isArray(val) } /** * @description: 是否客户端 */ export const isClient = () => { return typeof window !== 'undefined' } /** * @description: 是否为浏览器 */ export const isWindow = (val: any): val is Window => { return typeof window !== 'undefined' && is(val, 'Window') } /** * @description: 是否为 element 元素 */ export const isElement = (val: unknown): val is Element => { return isObject(val) && !!val.tagName } /** * @description: 是否为 null */ export function isNull(val: unknown): val is null { return val === null } /** * @description: 是否为 null || undefined */ export function isNullOrUnDef(val: unknown): val is null | undefined { return isUnDef(val) || isNull(val) } /** * @description: 是否为 16 进制颜色 */ export const isHexColor = (str: string) => { return /^#?([0-9A-Fa-f]{3}|[0-9A-Fa-f]{6})$/.test(str) }