window.external

问题 I'm developing hybrid application that require to call window.external.notify in javascript but this js code should run in browser also. So we have to have a condition for detecting is window.external.notify is defined or undefined. So we use that code but in runtime window.external.notify shows its value is like that {...} (but can't open). Are there any way to handle it? if(window.external !== undefined && window.external.notify !== undefined) 回答1: You can use this: if (typeof (window

问题 I'm developing hybrid application that require to call window.external.notify in javascript but this js code should run in browser also. So we have to have a condition for detecting is window.external.notify is defined or undefined. So we use that code but in runtime window.external.notify shows its value is like that {...} (but can't open). Are there any way to handle it? if(window.external !== undefined && window.external.notify !== undefined) 回答1: You can use this: if (typeof (window

问题 when assigning an object to the ObjectForScripting property of a WebBrowser control the methods of this object can be called by JavaScript by using windows.external.[method_name] . This works without problems. But how I need to design this C# object when I have a JavaScript function like this (accessing a sub object): window.external.app.testfunction(); I tested it with following C# object assigned to the ObjectForScripting property: [ComVisible(true)] public class TestObject { public App app

问题 How can I check if function exists on window.external? I'm calling C# code from javascript and I want to check if a method exists in the C# object. 回答1: I found the way, Just using the 'in' operator like this: if ('FunctionName' in window.external){ window.external.FunctionName(...); } 来源： https://stackoverflow.com/questions/42226772/how-can-i-check-if-function-exists-on-window-external