touch_feedback_duration

defines the duration of vibration feedback before/after drag and drop on touch devices (in milliseconds)

Example

gantt.config.touch_feedback_duration = 1;
...
gantt.init("gantt_here");

Default value:

1

added in version 4.1

Note, the config will have no effect if:

1. The touch support is disabled by the configuration option touch.
2. The browser doesn't support the Vibration API.

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