How to use `exportPCM` function

Can you please give an example on how to use exportPCMhttps://github.com/katspaugh/wavesurfer.js/blob/gh-pages/dist/wavesurfer.js#L470.

I tried using this way:

    var wavesurfer = Object.create(WaveSurfer);
    options = {
      container: document.querySelector('#waveform'),
      waveColor: 'blue',
      progressColor: 'black',
      waveformHeight: 10,
      cursorColor: 'black',
      normalize: true,
      backend: 'AudioElement',
      height: 150
    };
    wavesurfer.init(options);
    var wavedata = [.....]
    wavesurfer.load('remote url of the video or audio file')
    wavesurfer.on('ready', function() {
        console.log("Wavefrm loaded successfully!!!");
      wavesurfer.exportPCM();
    });

It pops out a new window with blank array.

Please suggest some working example.

Thanks

[weavermedia]

@cyb-ahmadh How did you get it working?

[ibnYusrat]

Got it working. Thanks

This is one of the worst things a developer can possibly come across.