Let's say I have this object:
{
"cars":[
{"modell":"Volvo", "color":"blue", "origin":"Sweden"},
{"modell":"SAAB", "color":"black", "origin":"Sweden"},
{"modell":"Fiat", "color":"brown", "origin":"Italy"},
{"modell":"BMW", "color":"silver", "origin":"Germany"},
{"modell":"BMW", "color":"black", "origin":"Germany"},
{"modell":"Volvo", "color":"silver", "origin":"Sweden"}
]
}
First, I save the object to myCars .
1: I'd like to use javascript to extract the cars with the origin Sweden and then put those cars in a new object called mySwedishCars .
2: If that is more simple, I'd like to extract all non-swedish cars from the object myCars .
At the end, I would have to have an object that contains only Swedish cars.
Any suggestion would be welcome!
Use filter
on the array of cars to return only the Swedish ones:
function getSwedish(arr) {
return arr.filter(function (el) {
return el.origin === 'Sweden';
});
}
var mySwedishCars = getSwedish(myCars.cars);
BUT! Even better, you can generalise the function to return whatever nationality of car you like:
function getCarsByCountry(arr, country) {
return arr.filter(function (el) {
return el.origin === country;
});
}
var mySwedishCars = getCarsByCountry(myCars.cars, 'Sweden');
var myGermanCars = getCarsByCountry(myCars.cars, 'Germany');
You can filter your array in javascript :
var swedishCars = myCars.cars.filter(function(c) {
return (c.origin === "Sweden");
});
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