eslint/no-unused-private-class-members Correctness ​
What it does ​
Disallow unused private class members
Why is this bad? ​
Private class members that are declared and not used anywhere in the code are most likely an error due to incomplete refactoring. Such class members take up space in the code and can lead to confusion by readers.
Examples ​
Examples of incorrect code for this rule:
javascript
class A {
#unusedMember = 5;
}
class B {
#usedOnlyInWrite = 5;
method() {
this.#usedOnlyInWrite = 42;
}
}
class C {
#usedOnlyToUpdateItself = 5;
method() {
this.#usedOnlyToUpdateItself++;
}
}
class D {
#unusedMethod() {}
}
class E {
get #unusedAccessor() {}
set #unusedAccessor(value) {}
}Examples of correct code for this rule:
javascript
class A {
#usedMember = 42;
method() {
return this.#usedMember;
}
}
class B {
#usedMethod() {
return 42;
}
anotherMethod() {
return this.#usedMethod();
}
}
class C {
get #usedAccessor() {}
set #usedAccessor(value) {}
method() {
this.#usedAccessor = 42;
}
}