"Lydia"

"Sarah"

Error: cannot redeclare Person

SyntaxError

{Symbol('a'): 'b'} and ["{Symbol('a')"]

{} and []

{ a: "b" } and ["a"]

{Symbol('a'): 'b'} and []

"I made it!"

Promise {<resolved>: "I made it!"}

Promise {<pending>}

undefined

[1, [2, 3, 4]] and undefined

[1, [2, 3, 4]] and { name: "Lydia", age: 21 }

[1, 2, 3, 4] and { name: "Lydia", age: 21 }

Error and { name: "Lydia", age: 21 }

SyntaxError

ReferenceError

TypeError

undefined

"Just give Lydia pizza already!"

TypeError: not a function

SyntaxError

undefined

false null []

null "" true

{} "" []

null null true

"Woof I am Mara", TypeError

"Woof I am Mara", "Woof I am Mara"

"Woof I am Mara", undefined

TypeError, TypeError

3, NaN, NaN

3, 7, NaN

3, Lydia2, [object Object]2

"12", Lydia2, [object Object]2

5

Promise {<pending>: 5}

Promise {<fulfilled>: 5}

Error