isabella232 / diffset

Progressively calculate and store the differences between the previous added values.

diffset

A small set numbers where only the diff of the previously added value is stored. So if your previous value was 120 and you store 123 it will only store the number 3.

Installation

The module is published in the public npm registry and can be installed by running:

npm install --save diffset

API

var Diffset = require('diffset');

var ds = new Diffset(100);

In the example above we import the diffset module and give it a starting value of 100. If no starting value is provided it will default to 0.

push

Add a new value to the set, the method accepts multiple arguments if you want to do a bulk add.

ds.push(120, 122, 130, 100, 101);
ds.push(111);

flush

Clear the internally stored diff set that you created by pushing in new values and return a copy of the data.

var data = ds.flush();
console.log(data) // 20, 2, 8, -30, 1, 10

License

MIT