Comments (1)
This is because currently seamless-immutable
does not copy over prototypes, and as such always returns a vanilla Object.
Copying over prototypes is a bit of a double-edged sword. Something like .toISOString()
should work as normal on an immutable object, so there's not much downside there. However, other methods might attempt to mutate the object and then fail silently (depending on whether Strict Mode is enabled). There's an element of "buyer beware" to copying prototypes.
That said, I suppose there's not much difference between deciding to use a prototype with mutating methods and just attempting to mutate an immutable object yourself, so on balance this seems like a reasonable change to make. At the very least, it ought to address the proximal issue of Date.toISOString
becoming unavailable.
from seamless-immutable.
Related Issues (20)
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from seamless-immutable.