新增：新增前端项目模块（基于 Vue3、TypeScript、Arco Design Pro Vue 技术栈），已对接现有 API

continew-admin-ui/src/utils/is.ts

@@ -0,0 +1,53 @@
+const opt = Object.prototype.toString;
+
+export function isArray(obj: any): obj is any[] {
+  return opt.call(obj) === '[object Array]';
+}
+
+export function isObject(obj: any): obj is { [key: string]: any } {
+  return opt.call(obj) === '[object Object]';
+}
+
+export function isString(obj: any): obj is string {
+  return opt.call(obj) === '[object String]';
+}
+
+export function isNumber(obj: any): obj is number {
+  return opt.call(obj) === '[object Number]' && obj === obj; // eslint-disable-line
+}
+
+export function isRegExp(obj: any) {
+  return opt.call(obj) === '[object RegExp]';
+}
+
+export function isFile(obj: any): obj is File {
+  return opt.call(obj) === '[object File]';
+}
+
+export function isBlob(obj: any): obj is Blob {
+  return opt.call(obj) === '[object Blob]';
+}
+
+export function isUndefined(obj: any): obj is undefined {
+  return obj === undefined;
+}
+
+export function isNull(obj: any): obj is null {
+  return obj === null;
+}
+
+export function isFunction(obj: any): obj is (...args: any[]) => any {
+  return typeof obj === 'function';
+}
+
+export function isEmptyObject(obj: any): boolean {
+  return isObject(obj) && Object.keys(obj).length === 0;
+}
+
+export function isExist(obj: any): boolean {
+  return obj || obj === 0;
+}
+
+export function isWindow(el: any): el is Window {
+  return el === window;
+}