kefir/src/one-source/changes.js

Reactive Programming library for JavaScript inspired by Bacon.js and RxJS with focus on high performance and low memory usage

import {createStream} from '../patterns/one-source'

const S = createStream('changes', {
  _handleValue(x) {
    if (!this._activating) {
      this._emitValue(x)
    }
  },

  _handleError(x) {
    if (!this._activating) {
      this._emitError(x)
    }
  },
})

export default function changes(obs) {
  return new S(obs)
}