filter array of object and change value code example

Example 1: how to filter an array of objects in javascript

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

Example 2: who to accses to an object vallue inside an array with .filter method js

const array = [
  {
    username: "john",
    team: "red",
    score: 5,
    items: ["ball", "book", "pen"]
  },
  {
    username: "becky",
    team: "blue",
    score: 10,
    items: ["tape", "backpack", "pen"]
  },
  {
    username: "susy",
    team: "red",
    score: 55,
    items: ["ball", "eraser", "pen"]
  },
  {
    username: "tyson",
    team: "green",
    score: 1,
    items: ["book", "pen"]
  },

];
//FILTER MEMBERS IN TEAM "RED"
const filterArray=array.filter(word=>word.team==="red")

Example 3: javascript array filter elements greater than

function isGreater(element, index, array) { 
   return (element >= 10); 
} 
          
let testElemets = [12, 5, 8, 130, 44].filter(isGreater); 
console.log("Test Value : " + testElemets );

Example 4: filter array by keyword

var data = [
  {email: "[email protected]",nama:"User A", Level:"Super Admin"},
  {email: "[email protected]",nama:"User B", Level:"Super Admin"},
  {email: "[email protected]",nama:"User C", Level:"Standart"},
  {email: "[email protected]",nama:"User D", Level:"Standart"},
  {email: "[email protected]",nama:"User E", Level:"Admin"},
  {email: "[email protected]",nama:"User F", Level:"Standart"}
];
var filter = "Level";
var keyword = "Standart";

var filteredData = data.filter(function(obj) {
	return obj[filter] === keyword;
});

console.log(filteredData);