Rule for spaces around "=" character

I looked through the available rules but I can’t seem to find how to enforce having spaces around a = character.

This should give a warning: const my_object={key: 'value'};

This should not give a warning and should be considered valid: const my_object = {key: 'value'};

Is there already a rule to enforce this?

[BYK]

@IanVS - I think it was automatic and it kind of addresses the original issue since space-infix-ops covers that case already.

[IanVS]

@ilyavolodin did you mean to close this issue from https://github.com/eslint/eslint/commit/ba818eee0fd69a50abe6289ae27b7ae4248c733d? It seems like maybe that should have been a (refs #2399).