Javascript console.log() in an iOS UIWebView

Question

When writing a iPhone / iPad app with a UIWebView, the console isn\'t visible. this excellent answer shows how to trap errors, but I would like to use the console.log() as w

Answer 1

NativeBridge is very helpful for communicating from a UIWebView to Objective-C. You can use it to pass console logs and call Objective-C functions.

https://github.com/ochameau/NativeBridge

console = new Object();
console.log = function(log) {
    NativeBridge.call("logToConsole", [log]);
};
console.debug = console.log;
console.info = console.log;
console.warn = console.log;
console.error = console.log;

window.onerror = function(error, url, line) {
    console.log('ERROR: '+error+' URL:'+url+' L:'+line);
};

The advantage of this technique is that things like newlines in log messages are preserved.