Method apply

packages/schematics/angular/utility/change.ts:94–102

(host: Host)

  }

  apply(host: Host): Promise<void> {
    return host.read(this.path).then((content) => {
      const prefix = content.substring(0, this.pos);
      const suffix = content.substring(this.pos + this.toRemove.length);

      // TODO: throw error if toRemove doesn't match removed string.
      return host.write(this.path, `${prefix}${suffix}`);
    });
  }
}

/**