`isprop`

Tests whether an object has a property of a given name.

Category: Programming > Classes

Syntax

tf = isprop(obj, 'name')

Returns true if name is a property of obj.

Description

Unlike isfield, which looks inside a struct, isprop is for objects: isprop(m, 'Count') asks whether the object m has a property called Count. It returns false for anything that is not an object, such as a number or a struct.

Input arguments

obj: An object.
'name': Property name, as text.

Output arguments

tf: Logical scalar.

Example

Properties of a Map

m = containers.Map();
isprop(m, 'Count')
isprop(m, 'Weight')
isprop([1 2 3], 'Count')

Output

ans = logical
   1
ans = logical
   0
ans = logical
   0

See also

ismethod isfield properties isobject