问如何将angular中的所有下划线都替换为空格？

EN

import { Pipe, PipeTransform } from '@angular/core';
/*
 * Replace the underscore with space 
*/
@Pipe({name: 'underscore'})
export class UnderscorePipe implements PipeTransform {
  transform(value: string): string {
    return  value.replace(/\_/g, ' ');
  }
}

import { UnderscorePipe } from './underscore.pipe';
@NgModule({
  imports: [
    BrowserModule,
    FormsModule,
    HttpClientModule
  ],
  declarations: [
    AppComponent,
    UnderscorePipe
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

{{imageGrid.bannerName | underscore}}

import { Pipe, PipeTransform } from '@angular/core';
/*
 * Replace the the first paremeter with the second parameter 
*/
@Pipe({name: 'replace'})
export class ReplacePipe implements PipeTransform {
  transform(value: string, existing: string, latest: string): string {
    return  value.replace(new RegExp('\\'+existing, 'g'), latest);
  }
}

 <h2>Hi Please {{value | replace: '_' : ' '}}</h2>