Contains the error, if any, generated by evaluation of the string most recently set in expression.If no expression string has been specified, or if the last


When true, the named property is time varyingラthat is, it has keyframes or an enabled expression. When this attribute is true, the attribute canVaryOverTime


The value of the named property at the current time.ユ If expressionEnabled is true, returns the evaluated expression value.ユ If there are keyframes, returns


The value of the named property as evaluated at the specified time.Note that the type of value returned is not made explicit; it will be of a different type

Property object

The Property object contains value, keyframe, and expression information about a particular AE property of a layer. An AE property is an value, often animat

PropertyBase object

Properties are accessed by name through layers, using various kinds of expression syntax, as controlled by application preferences. For example, the followi


Creates and returns a PropertyBase object with the specified name, and adds it to this group.In general, you can only add properties to an indexed group a p


Automatically replaces text found in broken expressions in the project, if the new text causes the expression to evaluate without errors.oldText The text to


Finds and returns a child property of this group, as specified by either its index or name.A name specification can use the same syntax that is available wi


When true, the named property is of a type whose expression can be set by a script. See also Property expression attribute .Boolean; read-only.