a simple state history manager

A step by step series of examples that tell you how to get a development env running

Say what the step will be

npm i simple-state-shot

import SimpleStateShot from 'simple-state-shot';

const simpleStateShot = new SimpleStateShot();

const firstState = {foo: 1};

simpleStateShot.push(firstState);
simpleStateShot.get();  // {foo: 1}
simpleStateShot.undo().get();   // null
simpleStateShot.redo().get();   // {foo: 1}

• maxLength - How many state the manager will store. strongly recommend to set this param to prevent memory leak

const simpleStateShot = new SimpleStateShot(10)

push a new state to the stack note: state should be JSON-safe.

get the last state. if no state in the stack, null will be returned

undo the last state. if no state in the stack, null will be returned

redo the last undo state.

the states length of current instance

reset stack

whether current state has a before/after state

This project is licensed under the MIT License.

Inspired by StateShot