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: Modify and Extend an Object
Task
You're given an object, student
, representing a student's information. Your task is to modify existing properties and add new properties.
- Modify the student's age to be
21
. - Add a new property called
grade
and set it to"A"
.
const student = { name: "Pauline Reilly", age: 24, major: "Humanities", }; // Task 1: Modify `age` to `21` ___ = ___ console.log(student.age); // Output: 21 // Task 2: Add a new property `grade` ___ = ___ console.log(student.grade); // Output: A
Expected output:
- To modify a property's value, use assignment with dot notation.
- To add a new property, use the assignment with dot notation, providing the property name and value.
const student = { name: "Pauline Reilly", age: 24, major: "Humanities", }; // Task 1: Modify `age` to `21` student.age = 21; console.log(student.age); // Output: 21 // Task 2: Add a new property `grade` student.grade = "A"; console.log(student.grade); // Output: A
Everything was clear?
Thanks for your feedback!
Section 2. Chapter 8