javascriptLogic errorHard

Filter returning too many results

Time: 0:00

What it should do

isAvailable(item) should be true only when the item is in stock AND not discontinued.

What goes wrong

isAvailable({inStock: false, discontinued: false}) returns true — an out-of-stock item is offered for sale.

Hints

This is a logic errors bug

The wrong operator, an inverted condition, a formula the right way round but backwards.