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ringbufferjs
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Readme
A simple ring buffer data structure for Node.js.
$ npm install ringbufferjs
var RingBuffer = require('ringbufferjs');
var ring = new RingBuffer(2);
ring.enq(10);
ring.enq(5);
ring.enq(1); // 10 will be discarded
ring.size(); // 2
ring.peek(); // 5
ring.deq(); // 5
ring.size(); // 1
RingBuffer()
Initializes a new empty RingBuffer
with the default capacity (50).
RingBuffer(capacity)
Initializes a new empty RingBuffer
with the given capacity
.
RingBuffer(capacity, evictedCb)
Initializes a new empty RingBuffer
with the given capacity
which will
execute the provided evictedCb
when an element is evicted.
RingBuffer#capacity()
Returns the capacity of the ring buffer.
RingBuffer#deq()
Dequeues the top element of the ring buffer.
Throws an Error
when the buffer is empty.
RingBuffer#deqN(count)
Dequeues count
elements from the top of the ring buffer and returns them.
Throws an Error
if there are not enough elements in the buffer.
RingBuffer#enq(element)
Enqueues the element
at the end of the ring buffer and returns its new size.
When the buffer is full the oldest element is discarded.
RingBuffer#isEmpty()
Returns whether the ring buffer is empty or not.
RingBuffer#isFull()
Returns whether the ring buffer is full or not.
RingBuffer#peek()
Peeks at the top element of the ring buffer.
Throws an Error
when the buffer is empty.
RingBuffer#peekN(count)
Returns count
elements from the top of the ring buffer.
Throws an Error
if there are not enough elements in the buffer.
RingBuffer#size()
Returns the size of the ring buffer.
$ npm install
$ npm test
MIT
FAQs
a simple ring buffer data structure
The npm package ringbufferjs receives a total of 367,403 weekly downloads. As such, ringbufferjs popularity was classified as popular.
We found that ringbufferjs demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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