object array filter code example
Example 1: how to filter object in javascript
let arr = [
{name: "John", age: 30},
{name: "Grin", age: 10},
{name: "Marie", age: 50},
];
let newArr = arr.filter((person)=>(return person.age <= 40));
Example 2: 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}];
let x = arr.filter((a)=>{if(a.title=='B'){return a}});
console.log(x)
Example 3: javascript filter array of objects
let people = [
{ name: "Steve", age: 27, country: "America" },
{ name: "Jacob", age: 24, country: "America" }
];
let filteredPeople = people.filter(function (currentElement) {
return currentElement.country === "America" && currentElement.age < 25;
});
console.log(filteredPeople);
Example 4: javascript object filter
function objectFilter = (obj, predicate) =>
Object.keys(obj)
.filter( key => predicate(obj[key]) )
.reduce( (res, key) => (res[key] = obj[key], res), {} );
var scores = {
John: 2, Sarah: 3, Janet: 1
};
var filtered = objectFilter(scores, num => num > 1);
console.log(filtered);
Example 5: javascript filter array of objects
function isBigEnough(value) {
return value >= 10
}
let filtered = [12, 5, 8, 130, 44].filter(isBigEnough)