angular-docs-cn/public/docs/_examples/testing/ts/app/shared/title-case.pipe.ts

12 lines
419 B
TypeScript

// #docregion
import { Pipe, PipeTransform } from '@angular/core';
@Pipe({name: 'titlecase', pure: false})
/** Transform to Title Case: uppercase the first letter of the words in a string.*/
export class TitleCasePipe implements PipeTransform {
transform(input: string): string {
return input.length === 0 ? '' :
input.replace(/\w\S*/g, (txt => txt[0].toUpperCase() + txt.substr(1).toLowerCase() ));
}
}