本文整理匯總了TypeScript中@nestjs/common/utils/shared.utils.isEmpty方法的典型用法代碼示例。如果您正苦於以下問題：TypeScript utils.isEmpty方法的具體用法？TypeScript utils.isEmpty怎麽用？TypeScript utils.isEmpty使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類@nestjs/common/utils/shared.utils的用法示例。
在下文中一共展示了utils.isEmpty方法的8個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: intercept
public async intercept(
interceptors: NestInterceptor[],
args: any[],
instance: Controller,
callback: (...args) => any,
next: () => Promise<any>,
): Promise<any> {
if (!interceptors || isEmpty(interceptors)) {
return await await next();
}
const context = this.createContext(args, instance, callback);
const start$ = defer(() => this.transformDeffered(next));
/***
const nextFn = (i: number) => async () => {
if (i <= interceptors.length) {
return start$;
}
return await interceptors[i].intercept(context, nextFn(i + 1) as any);
};
*/
const result$ = await interceptors.reduce(
async (stream$, interceptor) =>
await interceptor.intercept(context, await stream$),
Promise.resolve(start$),
);
return await result$.toPromise();
}示例2: iterate
public createConcreteContext<T extends any[], R extends any[]>(
metadata: T,
): R {
if (isUndefined(metadata) || isEmpty(metadata)) {
return [] as R;
}
return iterate(metadata)
.filter((guard: any) => guard && (guard.name || guard.canActivate))
.map(guard => this.getGuardInstance(guard))
.filter((guard: CanActivate) => guard && isFunction(guard.canActivate))
.toArray() as R;
}示例3: iterate
public createConcreteContext<T extends any[], R extends any[]>(
metadata: T,
): R {
if (isUndefined(metadata) || isEmpty(metadata)) {
return [] as R;
}
return iterate(metadata)
.filter((pipe: any) => pipe && (pipe.name || pipe.transform))
.map(pipe => this.getPipeInstance(pipe))
.filter(pipe => pipe && pipe.transform && isFunction(pipe.transform))
.map(pipe => pipe.transform.bind(pipe))
.toArray() as R;
}示例4: iterate
public createConcreteContext<T extends any[], R extends any[]>(
metadata: T,
): R {
if (isUndefined(metadata) || isEmpty(metadata)) {
return [] as R;
}
return iterate(metadata)
.filter(
instance => instance && (isFunction(instance.catch) || instance.name),
)
.map(filter => this.getFilterInstance(filter))
.map(instance => ({
func: instance.catch.bind(instance),
exceptionMetatypes: this.reflectCatchExceptions(instance),
}))
.toArray() as R;
}示例5: iterate
public createConcreteContext<T extends any[], R extends any[]>(
metadata: T,
): R {
if (isUndefined(metadata) || isEmpty(metadata)) {
return [] as R;
}
return iterate(metadata)
.filter(
(interceptor: any) =>
interceptor && (interceptor.name || interceptor.intercept),
)
.map(interceptor => this.getInterceptorInstance(interceptor))
.filter(
(interceptor: NestInterceptor) =>
interceptor && isFunction(interceptor.intercept),
)
.toArray() as R;
}示例6: create
public create(
instance: Controller,
callback: RouterProxyCallback,
module: string,
): ExceptionsHandler {
this.moduleContext = module;
const exceptionHandler = new ExceptionsHandler(this.applicationRef);
const filters = this.createContext(
instance,
callback,
EXCEPTION_FILTERS_METADATA,
);
if (isEmpty(filters)) {
return exceptionHandler;
}
exceptionHandler.setCustomFilters(filters.reverse());
return exceptionHandler;
}示例7: create
public create(
instance: Controller,
callback: (data) => Observable<any>,
module: string,
): RpcExceptionsHandler {
this.moduleContext = module;
const exceptionHandler = new RpcExceptionsHandler();
const filters = this.createContext(
instance,
callback,
EXCEPTION_FILTERS_METADATA,
);
if (isEmpty(filters)) {
return exceptionHandler;
}
exceptionHandler.setCustomFilters(filters.reverse());
return exceptionHandler;
}示例8: tryActivate
public async tryActivate(
guards: CanActivate[],
args: any[],
instance: Controller,
callback: (...args) => any,
): Promise<boolean> {
if (!guards || isEmpty(guards)) {
return true;
}
const context = this.createContext(args, instance, callback);
for (const guard of guards) {
const result = guard.canActivate(context);
if (await this.pickResult(result)) {
continue;
}
return false;
}
return true;
}