How to filter by two variables of the same array

[RicardoVaranda]

Hey guys,

In my use case I have the following object:

{
  "name": 'product 1';
  "version": '1';
  "software": null;
  "availability": ['Europe', 'America'];
  "language": ['English', 'German'];
}

I'm using objects with getters, binding as shown in the examples and returning the getter:

  constructor(data?: ProductInterface) {
    Object.assign(this, data);

    this.getName = this.getName.bind(this);
    this.getVersion = this.getVersion.bind(this);
    this.getLanguage = this.getLanguage.bind(this);
  }

  getLanguage() {
    return this.language;
  }

Currently to filter by one language I'd pass in the following filter:

{language: 'English'}

This works as intended, my issue is, I have a checkbox which allows the users to select multiple filters, how would I be able to pass both english and german into the language filter?