@jswork/next-operation-history NPM

next-operation-history

Operation history for next.

installation

npm install -S @jswork/next-operation-history

structure

{
  max: 100,
  engine: 'local', // session
  prefix:'wbs', // wbs__operation_history@
  index: 0,  // the pointer
  data: [
    { id:'obj_hash1', value: 'json1'},
    { id:'obj_hash2', value: 'json2'},
    { id:'obj_hash3', value: 'json3'},
    { id:'obj_hash4', value: 'json4'},
  ]
}

configuration

{
  max: 10,
  engine: 'local', // session
  prefix: 'nx'
}

methods

api	params	description
reset	-	Set index/data to default options value.
last	-	Get last index.
at	-/index	Get current(index) item at index.
get	(id)	Get data by id.
gets	-	Get all storage data.
forward	-	Move index to next.
back	-	Move index to previous.
go	index	Move to the index.
push	data	Push data to items.
replace	data	Replace the last item.
add	data	Add to the store without judgement.
del	id	Remove all the equal id elements.

properties

api	description
next	Property: can forward?
prev	Property: can back?
length	Property: data size
index	Property: Pointer
data	Property: the original data

usage

import NxOperationHistory from '@feizheng/next-operation-history';

// code goes here:
const noh = new NxOperationHistory({ prefix: 'abc', max: 20, engine:'local' });

// save:
noh.push();
noh.at():

// undo
noh.back();
noh.at();

// redo
noh.forward();
noh.at();

// can next?
noh.next

// can previous?
noh.prev

license

Code released under the MIT license.

next operation history redo undo

@jswork/next-hash @jswork/next-remove @jswork/next-local-storage @jswork/next-session-storage

@everything-registry/sub-chunk-501 @zalastax/nolb-_jsw @infinitebrahmanuniverse/nolb-_jsw

1.0.0

5 years ago