fix: use for in loop in array is not right

[awesomeYG]

No description provided.

[sormy]

Well, you can rewrite it to of, but it should be for (var rule of rules) { then. What is the problem are you trying to solve? There are unit tests that are covering almost all use cases.

[awesomeYG]

Well, you can rewrite it to of, but it should be for (var rule of rules) { then. What is the problem are you trying to solve? There are unit tests that are covering almost all use cases.

oooh, you're right

[sormy]

This change is incorrect for (var rules of rules) {, supposed to be for (var rule of rules) {. What is the problem this change is supposed to solve? There is no good reason to rewrite to functionally equivalent "for of" loop and introduce es6 syntax while the rest of codebase remains es5.