1.0.0 • Published 4 years ago
nanocursor v1.0.0
nanocursor
Small cursor abstraction that can seek, go forward, and go backwards.
npm install nanocursor
Usage
const Nanocursor = require('nanocursor')
const cursor = new Nanocursor({
seek (pos, cb) {
// should seek to pos
cb(null)
},
next (cb) {
// read the next item and return it
cb(null, ...)
},
prev (cb) {
// read the prev item and return it
cb(null, ...)
}
})
API
cursor = new Cursor([options])
Make a new cursor. Optionally pass in seek
, next
, prev
as the implementation for the those corresponding calls.
cursor.seek(position, [callback])
Seek the cursor.
cursor._seek(position, callback)
Override this method to add seek logic.
Only one _prev
, _next
, or _seek
call will be active at the time.
cursor.next(callback)
Get the next cursor item.
cursor._next(callback)
Override this method to add next logic.
Only one _prev
, _next
, or _seek
call will be active at the time.
cursor.prev(callback)
Get the prev cursor item.
cursor._prev(callback)
Override this method to add prev logic.
Only one _prev
, _next
, or _seek
call will be active at the time.
License
MIT
1.0.0
4 years ago