Typescript get array of a column value in array of objects

Question

i have to get array from an array of objects.

Data

var result1 = [
    {id:1, name:'Sandra', type:'user', username:'sandra'},
    {id:2, name:'John', type:'admin', username:'johnny2'},
    {id:3, name:'Peter', type:'user', username:'pete'},
    {id:4, name:'Bobby', type:'user', username:'be_bob'}

My Code

var data = result1.filter(x => x.id)

Expected O/P

var data = [1,2,3,4]

my code is not returning the expected result. Thanks in advance

Solution 1

Filter will take only the matching values, You need to use .map

var data = result1.map(x => x.id);

DEMO

var result1 = [
    {id:1, name:'Sandra', type:'user', username:'sandra'},
    {id:2, name:'John', type:'admin', username:'johnny2'},
    {id:3, name:'Peter', type:'user', username:'pete'},
    {id:4, name:'Bobby', type:'user', username:'be_bob'}];
    
 
var data = result1.map(t=>t.id);
console.log(data);

Solution 2

You need to use map

var data = result1.map(x => x.id)