How use stringByEvaluatingJavaScript with params

Question

I'am trying to do this function in Swift 3

self.dict = result as! [String : AnyObject]
self.webView.stringByEvaluatingJavaScript(from: "setFacebookResult(\(self.dict),\(self.userToken))")

I have to pass the token and the result to a global function in javascript but this params dont go correctly to the method. Pls help me!

Answer 1

You have to format it correctly for javascript.

Note that when using strings, you can't do something like:

let aString = "myTestString"
self.webView.stringByEvaluatingJavaScript(from: "var myString = \(aString)")

instead you have to format it with "" :

let aString = "myTestString"
self.webView.stringByEvaluatingJavaScript(from: "var myString = \"\(aString)\"")