BUG-000141819 for ArcGIS API for JavaScript

Bug ID Number	BUG-000141819
Submitted	July 29, 2021
Last Modified	June 5, 2024
Applies to	ArcGIS API for JavaScript
Version found	4.20
Operating System	Windows OS
Operating System Version	10.0 64 Bit
Status	Will Not Be Addressed

Additional Information

This is not known limitation. When a timeSlider.play() function is called, the thumbs immediately jump to the next 'stop' and then pause for the playRate time period. The observed behavior when explicitly defining a ViewModel is by design. When properties are defined at the widget level there is a perceived pause. This is because the widget is still hydrating the view model and is unable to perform the first movement. This is the reason with the 5 seconds delay. To remove the delay, the user should wait for the widget to fully initialize as shown below. timeSlider.when(() => { timeSlider.play(); }); If the user would like to pause the playing for a prescripted about of time then I would suggest something like as follows. // Wait three seconds after TimeSlider has fully loaded to play. timeSlider.when(async () => { const pause = new Promise((resolve) => { setTimeout(() => { resolve(); }, 3000); }); await pause; timeSlider.play(); });

Workaround

Define all property values for the Time Slider widget directly, without using ‘viewModel’ property.
Do not use the ‘play()’ method to start the slider animation automatically.