a.js
import B from "./b"
const b = new B()
console.log(b)
export default class A {
testa = "aaa"
}b.js
import A from "./a"
const a = new A()
console.log(a)
export default class B {
testb = "bbb"
}
a.js
import B from "./b"
const b = new B()
console.log(b)
export default class A {
testa = "aaa"
}b.js
import A from "./a"
const a = new A()
console.log(a)
export default class B {
testb = "bbb"
}Yes, it is not available to refer to each other, otherwise it will cause repeated references to report errors, so when developing, the structure should be clear
es6 will form a recursive
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