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Please enable JavaScript in your browser settings or update your browser.Learn Challenge: Navigate the DOM Hierarchy | DOM Manipulation for Interactive Web Development
Advanced JavaScript Mastery
course content

Course Content

Advanced JavaScript Mastery

Advanced JavaScript Mastery

1. Mastering JavaScript Classes and Inheritance
Getting StartedUnderstanding Class Declarations in JavaScriptChallenge: Create a JavaScript ClassDefining Methods in JavaScript ClassesChallenge: Add Methods to a ClassUsing Parameter ObjectsWorking with Private Properties in ClassesChallenge: Implement Private Properties in a ClassManaging Properties with Getters and SettersChallenge: Implement Getters and Setters in a ClassExploring Static Properties in JavaScriptUsing Static Methods in JavaScriptChallenge: Implement Static Properties and Methods in a ClassUnderstanding Inheritance with extends and super()Challenge: Implement Class Inheritance with extends and super()
2. DOM Manipulation for Interactive Web Development
What Is the Document Object Model (DOM)?Querying and Selecting Elements in the DOMChallenge: Query and Select DOM ElementsUnderstanding the DOM Hierarchy and RelationshipsChallenge: Navigate the DOM HierarchyExploring DOM Properties in JavaScriptWorking with Element Attributes in the DOMChallenge: Manage Element Properties and AttributesAdding Elements to the DOM DynamicallyRemoving Elements From the DOMChallenge: Add and Remove DOM ElementsModifying Element Styles with JavaScriptChallenge: Apply Dynamic Styles to DOM Elements
3. Event Handling and User Interactions in JavaScript
Introduction to Events and Event ListenersUnderstanding the Event Object in JavaScriptChallenge: Implement Event ListenersEvent Propagation and Delegation ExplainedChallenge: Handle Event Propagation and DelegationWorking with Keyboard and Mouse EventsManaging and Removing Event Listeners
4. Asynchronous JavaScript and API Integration
Introduction to Asynchronous JavaScriptUnderstanding Callbacks in JavaScriptHandling Asynchronous Operations with PromisesUsing Async/Await for Cleaner Asynchronous CodeFetching and Working with APIs in JavaScriptIntegrating APIs in JavaScript ApplicationsChallenge: Fetch and Use API DataIntegrating Third-Party Libraries in JavaScriptChallenge: Work with Third-Party LibrariesHandling Multiple Asynchronous Requests

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Challenge: Navigate the DOM Hierarchy

Task

You have a simple task list in HTML. Your goal is to navigate through the DOM hierarchy using properties like parentNode, childNodes, firstChild, lastChild, previousSibling, and nextSibling to understand their behavior and how they access different nodes.

  1. Access the Parent Node: The <li> element with the ID current-task is selected. Access its parent <ul> element;
  2. Access All Child Nodes: Retrieve all child nodes, including text nodes (like whitespace);
  3. Access the First and Last Child Nodes:
    • Access the first child node on the parent <ul>;
    • Access the last child node on the parent <ul>.
  4. Navigate to Sibling Nodes:
    • Access its previous sibling node on current-task;
    • Access its next sibling node on current-task.
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  • Use parentNode to access its parent <ul> element.
  • Use childNodes on the parent <ul> to retrieve all child nodes, including text nodes (like whitespace);
  • Use firstChild on the parent <ul> to access the first child node;
  • Use lastChild on the parent <ul> to access the last child node;
  • Use previousSibling on current-task to access its previous sibling node;
  • Use nextSibling on current-task to access its next sibling node.
index.html

index.html

index.css

index.css

index.js

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SectionΒ 2. ChapterΒ 5

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course content

Course Content

Advanced JavaScript Mastery

Advanced JavaScript Mastery

1. Mastering JavaScript Classes and Inheritance
Getting StartedUnderstanding Class Declarations in JavaScriptChallenge: Create a JavaScript ClassDefining Methods in JavaScript ClassesChallenge: Add Methods to a ClassUsing Parameter ObjectsWorking with Private Properties in ClassesChallenge: Implement Private Properties in a ClassManaging Properties with Getters and SettersChallenge: Implement Getters and Setters in a ClassExploring Static Properties in JavaScriptUsing Static Methods in JavaScriptChallenge: Implement Static Properties and Methods in a ClassUnderstanding Inheritance with extends and super()Challenge: Implement Class Inheritance with extends and super()
2. DOM Manipulation for Interactive Web Development
What Is the Document Object Model (DOM)?Querying and Selecting Elements in the DOMChallenge: Query and Select DOM ElementsUnderstanding the DOM Hierarchy and RelationshipsChallenge: Navigate the DOM HierarchyExploring DOM Properties in JavaScriptWorking with Element Attributes in the DOMChallenge: Manage Element Properties and AttributesAdding Elements to the DOM DynamicallyRemoving Elements From the DOMChallenge: Add and Remove DOM ElementsModifying Element Styles with JavaScriptChallenge: Apply Dynamic Styles to DOM Elements
3. Event Handling and User Interactions in JavaScript
Introduction to Events and Event ListenersUnderstanding the Event Object in JavaScriptChallenge: Implement Event ListenersEvent Propagation and Delegation ExplainedChallenge: Handle Event Propagation and DelegationWorking with Keyboard and Mouse EventsManaging and Removing Event Listeners
4. Asynchronous JavaScript and API Integration
Introduction to Asynchronous JavaScriptUnderstanding Callbacks in JavaScriptHandling Asynchronous Operations with PromisesUsing Async/Await for Cleaner Asynchronous CodeFetching and Working with APIs in JavaScriptIntegrating APIs in JavaScript ApplicationsChallenge: Fetch and Use API DataIntegrating Third-Party Libraries in JavaScriptChallenge: Work with Third-Party LibrariesHandling Multiple Asynchronous Requests

book
Challenge: Navigate the DOM Hierarchy

Task

You have a simple task list in HTML. Your goal is to navigate through the DOM hierarchy using properties like parentNode, childNodes, firstChild, lastChild, previousSibling, and nextSibling to understand their behavior and how they access different nodes.

  1. Access the Parent Node: The <li> element with the ID current-task is selected. Access its parent <ul> element;
  2. Access All Child Nodes: Retrieve all child nodes, including text nodes (like whitespace);
  3. Access the First and Last Child Nodes:
    • Access the first child node on the parent <ul>;
    • Access the last child node on the parent <ul>.
  4. Navigate to Sibling Nodes:
    • Access its previous sibling node on current-task;
    • Access its next sibling node on current-task.
index.html

index.html

index.css

index.css

index.js

index.js

copy
  • Use parentNode to access its parent <ul> element.
  • Use childNodes on the parent <ul> to retrieve all child nodes, including text nodes (like whitespace);
  • Use firstChild on the parent <ul> to access the first child node;
  • Use lastChild on the parent <ul> to access the last child node;
  • Use previousSibling on current-task to access its previous sibling node;
  • Use nextSibling on current-task to access its next sibling node.
index.html

index.html

index.css

index.css

index.js

index.js

copy

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 2. ChapterΒ 5
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