132 lines
3.6 KiB
TypeScript
132 lines
3.6 KiB
TypeScript
const toString = Object.prototype.toString;
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export function is(val: unknown, type: string) {
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return toString.call(val) === `[object ${type}]`;
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}
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export function 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 function isUnDef<T = unknown>(val?: T): val is T {
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return !isDef(val);
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}
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export function 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 function isEmpty<T = unknown>(val: T): val is T {
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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 function isDate(val: unknown): val is Date {
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return is(val, 'Date');
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}
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export function isNull(val: unknown): val is null {
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return val === null;
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}
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export function 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 function 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 function isNumber(val: unknown): val is number {
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return is(val, 'Number');
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}
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export function stringIsNumber(val) {
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const regPos = /^\d+(\.\d+)?$/; //非负浮点数
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const regNeg =
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/^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$/; //负浮点数
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if (regPos.test(val) || regNeg.test(val)) {
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return true;
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} else {
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return false;
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}
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}
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export function 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 function isString(val: unknown): val is string {
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return is(val, 'String');
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}
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export function isFunction(val: unknown): val is Function {
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return typeof val === 'function';
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}
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export function isBoolean(val: unknown): val is boolean {
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return is(val, 'Boolean');
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}
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export function isRegExp(val: unknown): val is RegExp {
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return is(val, 'RegExp');
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}
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export function 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 function 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 function isElement(val: unknown): val is Element {
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return isObject(val) && !!val.tagName;
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}
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export function 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 function isUrl(path: string): boolean {
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if (!path.includes('//')) return false;
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const urlRegex = /^(ftp|http|https):\/\/[^ "]+$/;
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return urlRegex.test(path);
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// const sRegex =
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// '^((https|http|ftp|rtsp|mms)?://)' +
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// "?(([0-9a-z_!~*'().&=+$%-]+: )?[0-9a-z_!~*'().&=+$%-]+@)?" + //ftp的user@
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// '(([0-9]{1,3}.){3}[0-9]{1,3}' + // IP形式的URL- 199.194.52.184
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// '|' + // 允许IP和DOMAIN（域名）
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// "([0-9a-z_!~*'()-]+.)*" + // 域名- www.
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// '([0-9a-z][0-9a-z-]{0,61})?[0-9a-z].' + // 二级域名
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// '[a-z]{2,6})' + // first level domain- .com or .museum
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// '(:[0-9]{1,4})?' + // 端口- :80
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// '((/?)|' + // a slash isn't required if there is no file name
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// "(/[0-9a-z_!~*'().;?:@&=+$,%#-]+)+/?)$";
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// const re = new RegExp(sRegex);
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// return re.test(path);
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// const reg =
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// /^(?:(http|https|ftp):\/\/)?((?:[\w-]+\.)+[a-z0-9]+)((?:\/[^/?#]*)+)?(\?[^#]+)?(#.+)?$/i;
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// // const reg =
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// // /(((^https?:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+(?::\d+)?|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[\w]*))?)$/;
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// return reg.test(path);
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}
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