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geomago/merge_arrays_2.js

Last active June 19, 2020 14:15
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merge_arrays_2
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merge_arrays_2.js
let allCars = cars2.reduce(
(result,item) => {
if ( cars.findIndex( car => car.id == item.id ) < 0) {
result.push(item);
}
return result;
},
cars.slice(0)
);
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