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 by array
var arr = [1,2,3,4],
brr = [2,4],
res = arr.filter(f => !brr.includes(f));
console.log(res);
Example 4: js filter object
function filterObj( obj, predicate ) {
var result = {}, key;
for ( key in obj ) {
if ( obj.hasOwnProperty( key ) && predicate( key, obj[ key ] ) ) {
result[ key ] = obj[ key ];
}
}
return result;
};
var obj = {
name : 'john',
lastName : 'smith',
age : 32
}
var filteredObj = filterObj( obj, function( key, value ) {
return key !== 'age' && value !== 'smith'
});
console.log( filteredObj );
Example 5: array filter
const words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
const result = words.filter(word => word.length > 6);
console.log(result);
Example 6: 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);