Finding lowest value of an array of objects

Question

I am making a game with obstacles currently and I want to find the object with the lowest X value. Here is an example of an array.

var array = [{x:500, y:400}, {x:80, y:400}, {x:900, y:400}];

I want to be able to determine what is the lowest X in this group(80) and return it to me. Is there any way to do this?

Answer 1

You don't need to sort the array or use an external library. You can use Array.prototype.reduce to find the object with minimum x in linear time:

const array = [{x:500, y:400}, {x:80, y:400}, {x:900, y:400}];
const minX = array.reduce((acc, curr) => curr.x < acc.x ? curr : acc, array[0] || undefined);
console.log(minX)