How can I find the lightest object from array of objects? I do not want to get value, but the object with this value. Not for instance just 1200 but the object {mass: 1200, numberOfel: ..., indexOfEl: ... , isCorrect: boolean}
let massOfElephants = [2400, 2000, 1200, 2400, 1600, 4000];
let startOrder = [1, 4, 5, 3, 6, 2];
const elephantObject = [];
startOrder.forEach((val, i) => {
elephantObject.push({
mass: massOfElephants[val - 1],
numberOfEl: val,
indexOfEl: i,
isCorrect: false,
});
});
Since you have a list of objects already, all you need to do is sort the objects according to their mass properties. The way to go about it is to write a custom comparator function which to sort by (See Array.prototype.sort()).
For numeric types, the comparator function (a,b) => a - b will sort the values increasingly, and myArray.sort((a, b) => a - b) will sort myArray accordingly.
After sorting elephantObject.sort((a,b) => a.mass - b.mass), the lightest elephant will be the first entry of your object array: elephantObject[0].
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The reduce method reduces an array to a single value using a callback function.
const getLightest = (initial, current){
return (initial.mass < current.mass)?initial:current;
}
const lightest = elephantObject.reduce(getLightest);