Course Content
JavaScript Data Structures
JavaScript Data Structures
2. Fundamentals of JavaScript Objects
Understanding Objects in JavaScriptCreating Objects in JavaScriptWorking with Nested Object PropertiesChallenge: Create and Structure an ObjectAccessing Object Properties in JavaScriptChallenge: Retrieve Object Property ValuesManaging Object PropertiesChallenge: Modify and Extend an ObjectDefining Object MethodsUsing Properties within MethodsChallenge: Work with Object MethodsFundamentals of JavaScript Objects Sum-Up
3. Advanced Object Manipulation Techniques
Iterating Over Object Properties with the for...in LoopChallenge: Explore Object Properties with IterationUsing hasOwnProperty() to Check Object PropertiesChallenge: Object Property Iteration with hasOwnProperty()Cloning and Merging Objects with the Spread OperatorChallenge: Combine Objects with the Spread OperatorDestructuring Objects for Cleaner CodeChallenge: Extract Data with Object DestructuringAdvanced Object Manipulation Sum-Up
4. Mastering JavaScript Arrays
Understanding JavaScript ArraysChallenge: Access Array ElementsModifying Arrays and Accessing ElementsChallenge: Modify Array ElementsIterating Over Arrays with the for LoopChallenge: Loop Through Arrays with forUsing the for...of Loop for Array IterationChallenge: Efficient Array Iteration with for...ofMastering JavaScript Arrays Sum-Up
5. Advanced Array Methods and Transformations
Transforming Arrays with the map() MethodChallenge: Modify Array Elements Using map()Filtering Arrays with the filter() MethodChallenge: Select Specific Data Using filter()Finding Elements in an Array with the find() MethodChallenge: Search for Items Using find()Sorting Arrays with the sort() MethodChallenge: Sort and Extract Data with sort()Advanced Array Methods and Transformations Sum-UpCourse Summary
Challenge: Search for Items Using find()
Task
- The original array is given as
products
, containing objects representing products with propertiesname
,price
, andfeatured
. - Use the
find()
method to discover the first product in the array with thefeatured
property set totrue
. - If a featured product is found, log its name and price; otherwise, log a message indicating that no featured product was found.
const products = [ { name: "Laptop", price: 1200, featured: false }, { name: "Headphones", price: 150, featured: true }, { name: "Smartphone", price: 800, featured: false }, { name: "Camera", price: 1000, featured: true }, ]; const featuredProduct = ___.___((product) => ___ === true); if (featuredProduct) { console.log( `Featured product: ${___}, Price: $${featuredProduct.___}` ); } else { console.log(___); }
Expected output:
- Use the
find()
method on theproducts
array and provide a callback function that checks if thefeatured
property of the product object istrue
. - If a featured product is found, log its name and price; otherwise, log a message indicating that no featured product was found.
const products = [ { name: "Laptop", price: 1200, featured: false }, { name: "Headphones", price: 150, featured: true }, { name: "Smartphone", price: 800, featured: false }, { name: "Camera", price: 1000, featured: true }, ]; const featuredProduct = products.find((product) => product.featured === true); if (featuredProduct) { console.log( `Featured product: ${featuredProduct.name}, Price: $${featuredProduct.price}` ); } else { console.log("No featured product found."); }
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Section 5. Chapter 6