filter array

1let arr=[{id:1,title:'A', status:true}, {id:3,title:'B',status:true}, {id:2, title:'xys', status:true}];
2//find where title=B
3let x = arr.filter((a)=>{if(a.title=='B'){return a}});
4console.log(x)//[{id:3,title:'B',status:true}]

1ngOnInit() {
2  this.booksByStoreID = this.books.filter(
3          book => book.store_id === this.store.id);
4}

1arrayName.filter(item => item.value ==='value here' )

1const array = [
2  {
3    username: "john",
4    team: "red",
5    score: 5,
6    items: ["ball", "book", "pen"]
7  },
8  {
9    username: "becky",
10    team: "blue",
11    score: 10,
12    items: ["tape", "backpack", "pen"]
13  },
14  {
15    username: "susy",
16    team: "red",
17    score: 55,
18    items: ["ball", "eraser", "pen"]
19  },
20  {
21    username: "tyson",
22    team: "green",
23    score: 1,
24    items: ["book", "pen"]
25  },
26
27];
28//FILTER MEMBERS IN TEAM "RED"
29const filterArray=array.filter(word=>word.team==="red")

1var words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
2
3const result = words.filter(word => word.length > 6);
4
5console.log(result);

1function objectFilter = (obj, predicate) => 
2    Object.keys(obj)
3          .filter( key => predicate(obj[key]) )
4          .reduce( (res, key) => (res[key] = obj[key], res), {} );
5
6// Example use:
7var scores = {
8    John: 2, Sarah: 3, Janet: 1
9};
10
11var filtered = objectFilter(scores, num => num > 1); 
12console.log(filtered);