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Run onbeforeunload alternative if onbeforeunload not supported

Hi all

Fairly straightforward project.

Some browsers don't support the javascript function onbeforeunload. It's easy to test this by seeing if [login to view URL] is defined.

So if I have some code like this:

[login to view URL] = function() {

// do something


it will only work in browsers which support [login to view URL]

I need you to change the above code so it will try the alternatives (e.g. Safari's alternative to onbeforeunload, etc.) if [login to view URL] is undefined.

Your code needs to work in all major browsers, i.e. the browsers commonly used on Windows, Mac, Linux, iOS, Android.

Any questions, just ask!

Kĩ năng: Javascript

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Về Bên Thuê:
( 20 nhận xét ) Hong Kong, Macau

ID dự án: #17305575

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Good day, Sir! My name is Chengde.Z and I am an senior Web & Mobile App developer. I am very interesting in your project. I can resolove your idea in 20 minutes. I would love to have the opportunity to discuss yo Thêm

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$30 USD trong 1 ngày
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Hi I understand your requirements regarding Web. I am professionals BTech IT engineer. I am providing the every kind of service related to Web sites and server management. I have 5 years experience in Web developm Thêm

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Have a relevant experience in JavaScript. I have worked on it before. Kindly give me the offer to work on it.

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onbeforeunload event is supported in all browsers as seen in w3schools: [login to view URL] However, it has some tricks. I can make it work. I have been working with javascript for Thêm

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