Use Object.preventExtensions

[rubensworks]

Issue type:

• :heavy_plus_sign: Feature request

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Description:

Object.preventExtensions may give us some minor performance boost.

Some places we could use it:

• Bindings (they are currently immutables, but these don't use this feature yet it seems: https://github.com/immutable-js/immutable-js/pull/1544)
• RDFJS quads and terms (will need to be done in data factories: https://github.com/rdfjs-base/data-model)

[jatinAroraGit]

Hey there, Can I work on this issue ?

[rubensworks]

Certainly! Be sure to let me know if you need any help.

[rubensworks]

Since JS engines currently do not optimize frozen objects, there's no reason to implement this.