src/observations.js
function(observer, skipUpdate) {
    this.observers.add(observer);
    if (!skipUpdate) {
      observer.forceUpdateNextSync = true;
      observer.sync();
    }
  }
function(observer, skipUpdate) {
    this.observers.add(observer);
    if (!skipUpdate) {
      observer.forceUpdateNextSync = true;
      observer.sync();
    }
  }
function ( observer , skipUpdate ) { this . observers . add ( observer ) ; if ( ! skipUpdate ) { observer . forceUpdateNextSync = true ; observer . sync ( ) ; } }
Adds a new observer to be synced with changes. If `skipUpdate` is true then the callback will only be called when a change is made, not initially.
Adds a new observer to be synced with changes . If skipUpdate is true then the callback will only be called when a change is made not initially .