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https://github.com/angular/angular
synced 2026-05-24 09:28:37 +00:00
7c07bfff97
BREAKING CHANGE: Exceptions are no longer part of the public API. We don't expect that anyone should be referring to the Exception types. ExceptionHandler.call(exception: any, stackTrace?: any, reason?: string): void; change to: ErrorHandler.handleError(error: any): void;
31 lines
852 B
TypeScript
31 lines
852 B
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Pipe, PipeTransform} from '@angular/core';
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import {isBlank, isString} from '../facade/lang';
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import {InvalidPipeArgumentError} from './invalid_pipe_argument_error';
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/**
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* Implements uppercase transforms to text.
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*
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* ### Example
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*
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* {@example core/pipes/ts/lowerupper_pipe/lowerupper_pipe_example.ts region='LowerUpperPipe'}
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*
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* @stable
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*/
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@Pipe({name: 'uppercase'})
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export class UpperCasePipe implements PipeTransform {
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transform(value: string): string {
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if (isBlank(value)) return value;
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if (!isString(value)) {
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throw new InvalidPipeArgumentError(UpperCasePipe, value);
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}
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return value.toUpperCase();
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}
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}
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