gistfile1.js

//Set up the color pickers to work with our text input field
jQuery( document ).ready(function(){
  "use strict";
  
  //This if statement checks if the color picker widget exists within jQuery UI
  //If it does exist then we initialize the WordPress color picker on our text input field
  if( typeof jQuery.wp === 'object' && typeof jQuery.wp.wpColorPicker === 'function' ){
    jQuery( '#color' ).wpColorPicker();
  }
  else {
    //We use farbtastic if the WordPress color picker widget doesn't exist
    jQuery( '#colorpicker' ).farbtastic( '#color' );
  }
});