Symbol: Symbol.hasInstance method

hasInstance

WHEN defining the static method [Symbol.hasInstance] THEN the result is used with instanceof

class Square { static [Symbol.hasInstance](instance) { return true; } } assert.equal(Square instanceof Square, true);

Links

mdn docs Description of `Symbol.hasInstance` on MDN.
spec The specification of `Symbol.hasInstance`.

Required Knowledge

• `const` declaration (Block scope)
• creation (Class)

Related Katas

Symbol

• basics
• Symbol.for()
• Symbol.keyFor()

Difficulty Level

INTERMEDIATE

Stats

1 tests to solve