JS - add ParseInt value to array-CodePudding

Working with bad data from backend, I need to convert strings to integers.

I have JSON:

{
    "cars": [
        "36",
        "49",
        "73"
    ]
}

I have an attempt to convert the strings to integers.

let cars= res.data.products[0].cars;
                for (const key of Object.keys(cars)) {
                    setSelectedCars(selCars=> [...selCars, parseInt(cars, 0)]);
                }

This attempt does not work as I loop it wrong and end with single value being present multiple times in array while "" remains.

The desired outcome would thus be:

{
    "cars": [
        36,
        49,
        73
    ]
}

CodePudding user response：

Just use map and convert each to a number.

const data = {
    "cars": [
        "36",
        "49",
        "73"
    ]
}

data.cars = data.cars.map(Number);

console.log(data);