When creating an array and populating it using the fill method, I noticed that changing array1[0].foo also changes all other objects in the array.
const array1 = Array(2).fill({ foo: null })
array1[0].foo = 'bar' // [ { foo: 'bar' }, { foo: 'bar' } ]
Is there a way to utilize the fill method while ensuring each index contains a unique copy of the same object?
Trying to implement Array#fill in this scenario won't yield the expected result as it uses a constant value.
An alternative approach would be to utilize Array.from, allowing you to map the object as needed.
const array = Array.from({ length: 2 }, _ => ({ foo: null }));
array[0].foo = 'bar';
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