src/js/state.js
function createZoomRangePath(options) {
      if (!angular.isObject(options.state)) {
        options.state = {};
      }
      if (!angular.isObject(options.state.range)) {
        options.state.range = [];
      }
    }
function createZoomRangePath(options) {
      if (!angular.isObject(options.state)) {
        options.state = {};
      }
      if (!angular.isObject(options.state.range)) {
        options.state.range = [];
      }
    }
function createZoomRangePath ( options ) { if ( ! angular . isObject ( options . state ) ) { options . state = { } ; } if ( ! angular . isObject ( options . state . range ) ) { options . state . range = [ ] ; } }
Create nested options objects.
Create nested options objects .