Documentation
Reference
2.1.50 (current version)
collection
interactivityModel
Interfaces
2.1.51 (release candidate)
collection
interactivityModel
Interfaces

modules.isDefined

Static function.

Checking the module's availability by name.

Returns true if the module is defined, false if not.

{ Boolean } modules.isDefined(module)

Parameters:

ParameterDefault valueDescription
module*
[no-highlight[

* Mandatory parameter/option.

]no-highlight]

Type: String

Module

* Mandatory parameter/option.

Example:

if (ymaps.modules.isDefined('plugin.CustomModule')) {
    ymaps.modules.require(['plugin.CustomModule'])
        .spread(
            function (CustomModule) {
                // ...
            }
        );
}