isobject

Return true if a variable is an object.

📝Syntax

res = isobject(var)

📥Input Arguments

Parameter	Description
var	a variable

📤Output Arguments

Parameter	Description
res	a logical: true or false

📄Description

isobject returns logical 1 if var is a Nelson object and logical 0 otherwise.

Classdef value objects and classdef handle objects are reported as objects.

💡Examples

Test classdef value and handle objects.

clear classes
d = [tempdir(), 'nelson_help_isobject/'];
mkdir(d);
filewrite([d, '/NelsonHelpIsObjectPoint.m'], ["classdef NelsonHelpIsObjectPoint"; "  properties"; "    X = 0"; "  end"; "end"]);
filewrite([d, '/NelsonHelpIsObjectCounter.m'], ["classdef NelsonHelpIsObjectCounter < handle"; "  properties"; "    Count = 0"; "  end"; "end"]);
addpath(d);
p = NelsonHelpIsObjectPoint();
h = NelsonHelpIsObjectCounter();
isPointObject = isobject(p)
isHandleObject = isobject(h)
delete(h)

🔗See Also

isa ishandle classdef

🕔Version History

Version	Description
1.0.0	initial version
2.0.0	classdef value and handle object support documented

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