| 提交 | 用户 | 时间 | ||
| 820397 | 1 | // copy to vben-admin |
| H | 2 | |
| 3 | const toString = Object.prototype.toString | |
| 4 | ||
| 5 | export const is = (val: unknown, type: string) => { | |
| 6 | return toString.call(val) === `[object ${type}]` | |
| 7 | } | |
| 8 | ||
| 9 | export const isDef = <T = unknown>(val?: T): val is T => { | |
| 10 | return typeof val !== 'undefined' | |
| 11 | } | |
| 12 | ||
| 13 | export const isUnDef = <T = unknown>(val?: T): val is T => { | |
| 14 | return !isDef(val) | |
| 15 | } | |
| 16 | ||
| 17 | export const isObject = (val: any): val is Record<any, any> => { | |
| 18 | return val !== null && is(val, 'Object') | |
| 19 | } | |
| 20 | ||
| 21 | export const isEmpty = <T = unknown>(val: T): val is T => { | |
| 22 | if (val === null) { | |
| 23 | return true | |
| 24 | } | |
| 25 | if (isArray(val) || isString(val)) { | |
| 26 | return val.length === 0 | |
| 27 | } | |
| 28 | ||
| 29 | if (val instanceof Map || val instanceof Set) { | |
| 30 | return val.size === 0 | |
| 31 | } | |
| 32 | ||
| 33 | if (isObject(val)) { | |
| 34 | return Object.keys(val).length === 0 | |
| 35 | } | |
| 36 | ||
| 37 | return false | |
| 38 | } | |
| 39 | ||
| 40 | export const isDate = (val: unknown): val is Date => { | |
| 41 | return is(val, 'Date') | |
| 42 | } | |
| 43 | ||
| 44 | export const isNull = (val: unknown): val is null => { | |
| 45 | return val === null | |
| 46 | } | |
| 47 | ||
| 48 | export const isNullAndUnDef = (val: unknown): val is null | undefined => { | |
| 49 | return isUnDef(val) && isNull(val) | |
| 50 | } | |
| 51 | ||
| 52 | export const isNullOrUnDef = (val: unknown): val is null | undefined => { | |
| 53 | return isUnDef(val) || isNull(val) | |
| 54 | } | |
| 55 | ||
| 56 | export const isNumber = (val: unknown): val is number => { | |
| 57 | return is(val, 'Number') | |
| 58 | } | |
| 59 | ||
| 60 | export const isPromise = <T = any>(val: unknown): val is Promise<T> => { | |
| 61 | return is(val, 'Promise') && isObject(val) && isFunction(val.then) && isFunction(val.catch) | |
| 62 | } | |
| 63 | ||
| 64 | export const isString = (val: unknown): val is string => { | |
| 65 | return is(val, 'String') | |
| 66 | } | |
| 67 | ||
| 68 | export const isFunction = (val: unknown): val is Function => { | |
| 69 | return typeof val === 'function' | |
| 70 | } | |
| 71 | ||
| 72 | export const isBoolean = (val: unknown): val is boolean => { | |
| 73 | return is(val, 'Boolean') | |
| 74 | } | |
| 75 | ||
| 76 | export const isRegExp = (val: unknown): val is RegExp => { | |
| 77 | return is(val, 'RegExp') | |
| 78 | } | |
| 79 | ||
| 80 | export const isArray = (val: any): val is Array<any> => { | |
| 81 | return val && Array.isArray(val) | |
| 82 | } | |
| 83 | ||
| 84 | export const isWindow = (val: any): val is Window => { | |
| 85 | return typeof window !== 'undefined' && is(val, 'Window') | |
| 86 | } | |
| 87 | ||
| 88 | export const isElement = (val: unknown): val is Element => { | |
| 89 | return isObject(val) && !!val.tagName | |
| 90 | } | |
| 91 | ||
| 92 | export const isMap = (val: unknown): val is Map<any, any> => { | |
| 93 | return is(val, 'Map') | |
| 94 | } | |
| 95 | ||
| 96 | export const isServer = typeof window === 'undefined' | |
| 97 | ||
| 98 | export const isClient = !isServer | |
| 99 | ||
| 100 | export const isUrl = (path: string): boolean => { | |
| 101 | const reg = | |
| 102 | /(((^https?:(?:\/\/)?)(?:[-:&=\+\$,\w]+@)?[A-Za-z0-9.-]+(?::\d+)?|(?:www.|[-:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&%@.\w_]*)#?(?:[\w]*))?)$/ | |
| 103 | return reg.test(path) | |
| 104 | } | |
| 105 | ||
| 106 | export const isDark = (): boolean => { | |
| 107 | return window.matchMedia('(prefers-color-scheme: dark)').matches | |
| 108 | } | |
| 109 | ||
| 110 | // 是否是图片链接 | |
| 111 | export const isImgPath = (path: string): boolean => { | |
| 112 | return /(https?:\/\/|data:image\/).*?\.(png|jpg|jpeg|gif|svg|webp|ico)/gi.test(path) | |
| 113 | } | |
| 114 | ||
| 115 | export const isEmptyVal = (val: any): boolean => { | |
| 116 | return val === '' || val === null || val === undefined | |
| 117 | } | |
