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blocks:app-note:interacting-from-a-custom-web-page [2021-08-31 14:54]
max Fixed a issue in pub-sub-peer.js
blocks:app-note:interacting-from-a-custom-web-page [2022-09-22 09:54]
admin Documented add can also do append
Line 132: Line 132:
 === pubSubPeer.add === === pubSubPeer.add ===
  
-This is similar to the //set// function, and takes the same two parameters. However, it may only be used with numeric values. You can use it to increase or decrease (by passing a negative valuenumeric property, such as a volume value. This is often simpler for such incremental adjustments than maintaining a subscription to the value in order to do the calculation on the client side based on the current value and then using the //set// function to change the value.+This is similar to the //set// function, and takes the same two parameters. When used with numeric property, the value you specify will be added to the current value. Pass a negative value to subtract. When used with string property, the value will be //appended// (concatenated) to the current string value.  
 + 
 +The //add// methid is often simpler for such incremental adjustments than maintaining a subscription to the value in order to do the calculation on the client side based on the current value and then using the //set// function to change the value.
  
  
Line 149: Line 151:
 === pubSubPeer.unsubscribe === === pubSubPeer.unsubscribe ===
  
-This function allows you to terminate any value subscription initiated by the //subscribe// fuynction if you're no longer interested in changes of a property. It takes the following parameters:+This function allows you to terminate any value subscription initiated by the //subscribe// function if you're no longer interested in changes of a property. It takes the following parameters:
  
   - The full path to the property to subscribe to (see above).   - The full path to the property to subscribe to (see above).