This code is simple it is used to get the scanned Items and return their value if the scannedItems aren't there then it will return undefined, but for some reason the dot notation doesn't work for my function but only the bracket notation! i want to know out of curiosity why isn't it working for dot notation with detailed explanation
The code with dot notation
let foods = {
apples: 25,
oranges: 32,
plums: 28,
bananas: 13,
grapes: 35,
strawberries: 27
};
function checkInventory(scannedItem) {
var inventory = foods.scannedItem;
return inventory;
}
console.log(checkInventory("apples"));let foods = {
apples: 25,
oranges: 32,
plums: 28,
bananas: 13,
grapes: 35,
strawberries: 27
};
function checkInventory(scannedItem) {
var inventory = foods[scannedItem];
return inventory;
}
console.log(checkInventory("apples"));What comes after the dot is the name of the key which means you must know the key in advance and that is a limitation. Likely we have bracket notation that take a string letral for key name or a variable that holds your requested key for the cases when key is provided by user for example or key is passed in function args in your case.