feat(shallow): add Date object comparison support #201
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- Add instanceof Date check to compare dates by value instead of reference
- Ensures Date objects with same timestamp are considered equal
- Critical for state management scenarios where dates are recreated but represent same value
- Maintains existing behavior for all other object types
Example:
const state1 = { lastLogin: new Date('2023-01-01'), user: 'John' }
const state2 = { lastLogin: new Date('2023-01-01'), user: 'John' }
shallow(state1, state2) // now returns true instead of false
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Example:
const state1 = { lastLogin: new Date('2023-01-01'), user: 'John' }
const state2 = { lastLogin: new Date('2023-01-01'), user: 'John' }
shallow(state1, state2) // now returns true instead of false