done #2
done #2
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| @@ -1,18 +1,21 @@ | |||
| // Q1: | |||
| // Write a JavaScript function that takes a customer's name and account balance and returns a string in the format: "CustomerName has a balance of balance KD." | |||
| function formatCustomerBalance(customerName, balance) { | |||
| // Write code here | |||
| const customers = customers.forEach((customer) => balance); | |||
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you have a ReferenceError, you cannot access 'customers' before initialization.
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your forEach function is not doing anything.
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forEach have no return value, so customers will not have any value
| } | ||
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| formatCustomerBalance("John Doe", 150); // => "John Doe has a balance of 150 KD." | ||
| formatCustomerBalance("Jane Doe", 250); // => "John Doe has a balance of 250 KD." | ||
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| console.log(formatCustomerBalance); |
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this is not how we log the return value of the function, you are only logging the function declaration.
| // Q2: | ||
| // Write a JavaScript function that takes an array of objects representing books and returns an array of titles published after 2010. | ||
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| function getBooksPublishedAfter2010(books) { | ||
| // Write code here | ||
| const result = books.filter((titles) => title > 2010); |
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you have a ReferenceError, title is not defined
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you can't compare an object against a number
| } | ||
| console.log(result); |
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you have a ReferenceError, result is not defined.
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you can't log result outside of it's scope .
| @@ -41,22 +44,25 @@ getBooksPublishedAfter2010([ | |||
| // Q3 | |||
| // Write a JavaScript function that takes an array of product objects and returns the total price of all products in the category "electronics". | |||
| function getTotalPriceOfElectronics(products) { | |||
| // Write code here | |||
| const electronics = products.map((product) => product.price); | |||
| return electronics; | |||
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this function will return an array of all product prices, what we need is to return the sum of all products with the category of "electronics".
| } | ||
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| getTotalPriceOfElectronics([ | ||
| { name: "Laptop", category: "electronics", price: 999 }, | ||
| { name: "Book", category: "books", price: 30 }, | ||
| { name: "Smartphone", category: "electronics", price: 699 }, | ||
| console.log(getTotalPriceOfElectronics), |
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you can't add the console.log inside of an object, because it will result in a TypeError when passing it to getTotalPriceOfElectronics, undefined.price will result in a TypeError
| ]); // => 1698 | ||
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| // Q4: | ||
| // Write a JavaScript function that takes an array of customer objects and returns a summary string for each customer, including their name and account balance. | ||
| function getCustomerSummary(customers) { | ||
| // Write code here | ||
| return customers; |
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this function is only returning the argument provided to it
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