How to use multiple properties of an object in an array depending on user input?-CodePudding

const cities = [
{
    id: 0,
    city: "Buenos Aires",
    country: "Argentina",
    codeIATA: "AEP",
    aeroName: "Aeroparque Internacional Jorge Newbery",
    coordX: 15,
    coordY: 36,
},
{
    id: 1,
    city: "El Calafate",
    country: "Argentina",
    codeIATA: "FTE",
    aeroName: "Aeropuerto Internacional Comandante Armando Tola de El Calafate",
    coordX: -49,
    coordY: -63,
},
]

let origin = parseInt(prompt("ID Origen"));
let destination = parseInt(prompt("ID Destino"));

Inside an array I have multiple objects like the ones above. The user will select one of the objects for origin and the other for destination by entering 0 or 1 or whichever ID of objects that I will have. I'm guessing I'll have to match the number with the index or id inside the object to select it.

Once the object is selected for origin and destination I want to select the coordX and coordY of each and calculate the distance between each point (I already have the formula for that). I know how to do the math but I'm struggling to fetch the coordinates depending on which object the user selects.

CodePudding user response：

You can use cities.find (documentation) to find the city object with the id entered by the user:

const origin = 1;
const originCity = cities.find((city) => city.id === origin);