event in one polymer to change attributes of another polymer, them not having parent child relation
问题 An event handler in Polymer element a should change an attribute in Polymer element b . I tried (within a.dart ): - imported b.dart - query selector for element b . - called the function which modifies the value. - the value changes(print)). but not updated on UI. - modified variable is observable a.html <template> <input type="image" src="button_minus_red.gif" on-click="{{removePlayer}}" width = "15" height ="15"> {{playerName}}:{{playerCost}}<br> </template> b.html <template> <h1>Team Size: