118 lines
2.9 KiB
TypeScript
118 lines
2.9 KiB
TypeScript
// copy to vben-admin
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const toString = Object.prototype.toString
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export const is = (val: unknown, type: string) => {
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return toString.call(val) === `[object ${type}]`
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}
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export const isDef = <T = unknown>(val?: T): val is T => {
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return typeof val !== 'undefined'
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}
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export const isUnDef = <T = unknown>(val?: T): val is T => {
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return !isDef(val)
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}
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export const isObject = (val: any): val is Record<any, any> => {
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return val !== null && is(val, 'Object')
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}
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export const isEmpty = <T = unknown>(val: T): val is T => {
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if (val === null) {
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return true
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}
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if (isArray(val) || isString(val)) {
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return val.length === 0
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}
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if (val instanceof Map || val instanceof Set) {
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return val.size === 0
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}
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if (isObject(val)) {
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return Object.keys(val).length === 0
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}
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return false
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}
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export const isDate = (val: unknown): val is Date => {
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return is(val, 'Date')
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}
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export const isNull = (val: unknown): val is null => {
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return val === null
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}
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export const isNullAndUnDef = (val: unknown): val is null | undefined => {
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return isUnDef(val) && isNull(val)
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}
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export const isNullOrUnDef = (val: unknown): val is null | undefined => {
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return isUnDef(val) || isNull(val)
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}
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export const isNumber = (val: unknown): val is number => {
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return is(val, 'Number')
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}
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export const isPromise = <T = any>(val: unknown): val is Promise<T> => {
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return is(val, 'Promise') && isObject(val) && isFunction(val.then) && isFunction(val.catch)
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}
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export const isString = (val: unknown): val is string => {
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return is(val, 'String')
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}
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export const isFunction = (val: unknown): val is Function => {
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return typeof val === 'function'
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}
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export const isBoolean = (val: unknown): val is boolean => {
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return is(val, 'Boolean')
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}
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export const isRegExp = (val: unknown): val is RegExp => {
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return is(val, 'RegExp')
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}
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export const isArray = (val: any): val is Array<any> => {
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return val && Array.isArray(val)
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}
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export const isWindow = (val: any): val is Window => {
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return typeof window !== 'undefined' && is(val, 'Window')
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}
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export const isElement = (val: unknown): val is Element => {
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return isObject(val) && !!val.tagName
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}
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export const isMap = (val: unknown): val is Map<any, any> => {
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return is(val, 'Map')
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}
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export const isServer = typeof window === 'undefined'
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export const isClient = !isServer
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export const isUrl = (path: string): boolean => {
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const reg =
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/(((^https?:(?:\/\/)?)(?:[-:&=\+\$,\w]+@)?[A-Za-z0-9.-]+(?::\d+)?|(?:www.|[-:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&%@.\w_]*)#?(?:[\w]*))?)$/
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return reg.test(path)
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}
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export const isDark = (): boolean => {
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return window.matchMedia('(prefers-color-scheme: dark)').matches
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}
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// 是否是图片链接
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export const isImgPath = (path: string): boolean => {
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return /(https?:\/\/|data:image\/).*?\.(png|jpg|jpeg|gif|svg|webp|ico)/gi.test(path)
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}
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export const isEmptyVal = (val: any): boolean => {
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return val === '' || val === null || val === undefined
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}
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