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<p *ngFor="let param of singleValue"><span>{{param.key}}</span>: {{param.value}}</p>import { Pipe , PipeTransform } from '@angular/core';
@Pipe({
name: 'valuepipe'
})
export class ValuePipe implements PipeTransform {
transform(value: any ): any {
if ( typeof value === 'string' || 'number') {
return value;
} else if ( value === null ) {
return 'null';
} else {
return 'undefined';
}
}
}PT