WebPlatformDOMStringList.containsmethod DOMStringList.contains#DOMStringList.contains(string: string): booleanReturns true if strings contains string, and false otherwise. Parameters ##string: stringReturn Type #boolean
method DOMStringList.contains#DOMStringList.contains(string: string): booleanReturns true if strings contains string, and false otherwise. Parameters ##string: stringReturn Type #boolean