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Exercise: Implement a Linked List
Create a linked list class in JavaScript with methods for:
- Adding nodes to the end
- Removing nodes by value
- Finding a node by value
- Reversing the list
Show Hint
Start by creating a Node class with 'value' and 'next' properties. Then create a LinkedList class that manages the head node. Remember to handle edge cases like empty lists.
Show Solution
class Node {
constructor(value) {
this.value = value;
this.next = null;
}
}
class LinkedList {
constructor() {
this.head = null;
this.size = 0;
}
add(value) {
const node = new Node(value);
if (!this.head) {
this.head = node;
} else {
let current = this.head;
while (current.next) {
current = current.next;
}
current.next = node;
}
this.size++;
}
// Other methods would be implemented here
}Skill Assessment
Based on our interactions, here's your current skill profile:
Strong understanding of basic programming concepts
Good problem-solving skills
Needs more practice with advanced algorithms
Could improve on system design patterns
Recommendation: Focus on graph algorithms and design patterns next. Try implementing a graph traversal algorithm and a factory pattern example.
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