sort keys number of object javascript code example

Example 1: javascript sort array of objects by key value

arr.sort((x, y) => x.distance - y.distance);

Example 2: javascript sort object by key

function sortObjectByKeys(o) {
    return Object.keys(o).sort().reduce((r, k) => (r[k] = o[k], r), {});
}
var unsorted = {"c":"crane","b":"boy","a":"ant"};
var sorted=sortObjectByKeys(unsorted); //{a: "ant", b: "boy", c: "crane"}