cloning File objects

[art-in]

1. Take File object from <input type='file'>
2. Try to clone

TypeError: Cannot assign to read only property 'size' of object '#<File>'
    at _clone (clone.js:156)
    at _clone (clone.js:156)
    at _clone (clone.js:156)
    at _clone (clone.js:156)
    at _clone (clone.js:156)
    at _clone (clone.js:156)
    at clone (clone.js:196)
    at LogEntry.set (LogEntry.js:148)

[art-in]

Is there any workaround for this? Eg. would be neat to ignore properties with certain names while deep cloning.

[pvorb]

Unfortunately I'm not aware of any workarounds for this behaviour. I'd argue that it's better to throw an exception in that case than silently ignore it and have no proper clone of the object, don't you think?

[art-in]

@pvorb I'm thinking about optional ignoreUnclonableObjects flag (default: false).

Here is the case:
I have deep objects tree which consists of 99% clonable objects, except one of deep objects is HtmlElement and another one is File. Right now to clone whole structure I have to nullify those props in source object before cloning, and then restore back after cloning.

Having ability to ignore or shallow copy unclonable objects right in clone would save me from that awkward nullify-restore code.

[pvorb]

Okay, that's a use case.

[RaulTsc]

Any plan to support cloning Blobs/Files? https://github.com/jonschlinkert/clone-deep seems to do it, but they use for (const in which breaks on IE11 ..

[pvorb]

No