JSFiddle - React, Tailwind, and code Playground

by jasper

JavaScript

var arr = [
    {key1 : 'value 1-1', key2 : 'value 2-1'},
    {key1 : 'value 1-2', key2NOT : 'value 2-2'},
    {key1 : 'value 1-3', key2 : 'value 2-3'},
    {key1 : 'value 1-4', key2NOT : 'value 2-4'}
],
    data_member = 'key2',
    output      = {};

$.each(arr, function (index, obj) {
    if (data_member in obj) {
        output[index] = obj[data_member];
    }
});


console.log(output);