Rapid way to find min and max values of a property in an array of objects

Question

i have an array of objects like this:

arr = [
    {name: "Alex", value: 1}, 
    {name: "Bill", value: 2},
    {name: "Jim",  value: 3},
    {name: "Dim",  value: 5}
]

I want quick and clean way to have the min an max values of the value property

min = 1,
max = 5

Answer 1

Most performant would probably be a simple loop

arr = [
    {name: "Alex", value: 1}, 
    {name: "Bill", value: 2},
    {name: "Jim",  value: 3},
    {name: "Dim",  value: 5}
]

let min,max;

for (var i=arr.length; i--;) {
  if ((!min) || arr[i].value < min) min = arr[i].value;
  if ((!max) || arr[i].value > max) max = arr[i].value;
}

console.log(min, max)

Shortest to write, something like

arr = [
    {name: "Alex", value: 1}, 
    {name: "Bill", value: 2},
    {name: "Jim",  value: 3},
    {name: "Dim",  value: 5}
]

let m=Math,a=arr.map(z=>z.value);let [min,max]=[m.min(...a),m.max(...a)];

console.log(min,max)