JSFiddle - React, Tailwind, and code Playground

by Ebram

JavaScript

var arr = [{
    "id": "723419",
        "lat": 33.217,
        "lon": -92.817,
        "dist": 1437.15733534053
}, {
    "id": "723424",
        "lat": 33.567,
        "lon": -91.717,
        "dist": 1902.4556686060116
}, {
    "id": "722447",
        "lat": 32.383,
        "lon": -94.717,
        "dist": 2317.6870313059217
}];
var tempArray = new Array();
for (var item in arr) {    
    tempArray.push(arr[item]);
    tempArray[item]["elev"] = "value"; //write here your value
}
console.log(tempArray);