nightspirit

// before
componentWillUpdate(nextProps, nextState) {
  if (
    this.state.someStatefulValue !==
    nextState.someStatefulValue
  ) {
    nextProps.onChange(nextState.someStatefulValue);
  }
}

nightspirit

//before
componentWillMount() {
  this._asyncRequest = asyncLoadData()
  .then(externalData => {
     this._asyncRequest = null
     this.setState({externalData})
  })
}

//after

nightspirit

function Observable(init_value) {
    var _value = init_value;
    var subscriber = [];

    function obs() {
        if (arguments.length) {
            _value = arguments[0];
            obs.trigger();
            return this;
        } else {

nightspirit

function Defer () {
    var result = {};
    result.promise = new Promise(function(resolve, reject) {
        result.resolve = resolve;
        result.reject = reject;
    });
    return result;
};

nightspirit

window.cookie = {
  set: function(cname, cvalue, exday){
    var d = new Date();
    d.setTime(d.getTime() + (exday*24*60*60*1000));
    var expires = "expires="+d.toUTCString();
    document.cookie = cname + "=" + cvalue + "; " + expires;
  },
  get : function(cname) {
    var name = cname + "=";
    var ca = document.cookie.split(';');

nightspirit

<div ng-controller="uploadCtrl as upload">
  <!-- input file
    input name can be changed to fit the server side
  -->
  <input type="file" name="myFile"
         file-read
         upload-data="upload.data",
         preview="upload.preview",
         validate="upload.validate.file"/>