add properties

• Command

  • Add the properties from one property list or object to another.

  • If the destination property list already has a property with the same name, it is retained and left unchanged. To replace existing properties in the destination, use the replace properties command instead.

  • Example:

    set neighbor to {name:"Don", eyes:"blue"}
    set friend to {disposition: "cheerful"}
    add properties of friend to neighbor
    put neighbor --> {disposition:"cheerful", eyes:"blue", name:"Don"}

  • modification in 1.64: changed to treat a property of the destination property list whose value is <missing value> the same as though the property were not there, and replace it with the corresponding source property value

  • Related: adding properties, remove properties, replace properties, retain properties