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noInvalidConstructorSuper

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Diagnostic Category: lint/correctness/noInvalidConstructorSuper

Since: v1.0.0

Sources:

Prevents the incorrect use of super() inside classes. It also checks whether a call super() is missing from classes that extends other constructors.

Examples

Section titled Examples

Invalid

Section titled Invalid
class A {
    constructor() {
        super();
    }
}
code-block.js:3:9 lint/correctness/noInvalidConstructorSuper ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ This class should not have a super() call. You should remove it.
  
    1 │ class A {
    2 │     constructor() {
  > 3 │         super();
      │         ^^^^^
    4 │     }
    5 │ }
  
class A extends undefined {
    constructor() {
        super();
    }
}
code-block.js:3:9 lint/correctness/noInvalidConstructorSuper ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ This class calls super(), but the class extends from a non-constructor.
  
    1 │ class A extends undefined {
    2 │     constructor() {
  > 3 │         super();
      │         ^^^^^
    4 │     }
    5 │ }
  
  ℹ This is where the non-constructor is used.
  
  > 1 │ class A extends undefined {
      │                 ^^^^^^^^^
    2 │     constructor() {
    3 │         super();

Valid

Section titled Valid
export default class A extends B {
    constructor() {
        super();
    }
}
export class A {
    constructor() {}
}
Section titled Related links