R Melookaran #4
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R Melookaran #4
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kyra-patton
reviewed
May 17, 2022
| this.capacity = 20; | ||
| this.head = 0; | ||
| this.tail = 0; | ||
| this.store = Array(this.capacity).fill(null); | ||
| } | ||
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| enqueue(element) { |
| if (this.size()!==this.capacity) { | ||
| this.store[this.tail] = element; | ||
| this.tail = (this.tail + 1) % this.capacity; | ||
| } | ||
| } | ||
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| dequeue() { |
| this.store[this.head] = null; | ||
| this.head = (this.head + 1) % this.capacity; | ||
| return dequeued; | ||
| } | ||
| } | ||
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| front() { |
There was a problem hiding this comment.
👀 We want to return the value at the front of the queue, not the index
| } | ||
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| front() { | ||
| throw new Error("This method has not been implemented!"); | ||
| return this.head | ||
| } | ||
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| size() { |
| } else { | ||
| size = this.tail - this.head; | ||
| } | ||
| return size; | ||
| } | ||
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| isEmpty() { |
| } | ||
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| push() { | ||
| throw new Error("This method has not been implemented!"); | ||
| push(value) { |
| push() { | ||
| throw new Error("This method has not been implemented!"); | ||
| push(value) { | ||
| this.store.addFirst(value); | ||
| } | ||
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| pop() { |
| throw new Error("This method has not been implemented!"); | ||
| const first = this.store.getFirst(); | ||
| this.store.delete(first); | ||
| return first; | ||
| } | ||
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| isEmpty() { |
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👀 This works, however LinkedList also has an empty method you could take advantage of
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Fixed pickups.