--- title: Access Property Names with Bracket Notation localeTitle: 使用括号表示法访问属性名称 --- ## 使用括号表示法访问属性名称 方法: * 使用括号表示法只需在`checkInventory()`函数中编写return语句。 * 以下代码块演示了所需的语法。 ## 例: ```javascript let juice = { apple: 1.15, orange: 1.45 }; function checkInventory(scannedItem) { return juice[scannedItem]; } ``` ## 解: ```javascript let foods = { apples: 25, oranges: 32, plums: 28, bananas: 13, grapes: 35, strawberries: 27 }; // do not change code above this line function checkInventory(scannedItem) { // change code below this line return foods[scannedItem]; } // change code below this line to test different cases: console.log(checkInventory("apples")); ```