Issues with VH & VW in iOS

I am having issues getting vh and vw properties to work in ios. I am trying to use Javascript to set the window of ios device to 100vh & 100vw. This way when the css properties are called, the will work (hopefully). I am not certain how to formulate this. So if you can tell me how to structure the JS correctly or if you have experience with making vh and vw work in ios, please give me some pointers.

I was trying to integrate "BuggyFill" into my project, but I wasn't having any luck getting that to work either. If anyone has experience with BuggyFill, I would appreciate help with how to use this correctly in my project.

Here is some of the code I was trying to use to orient the window height code...

window.height() === 100vw;

OR

window.height(100vw);