typescript filter array in array code example

Example 1: angular array filter typescript

ngOnInit() {
  this.booksByStoreID = this.books.filter(
          book => book.store_id === this.store.id);
}

Example 2: typescript filter list by property

const object = {
  firstAttribute: 'firstValue',
  secondAttribute: 'secondValue'
};  

objectList.filter(o -> o.firstAttribute === 'firstValue');

Example 3: filter typescript

this.booksByStoreID = this.books.filter(book => book.store_id === this.store.id);