CODEWITHSUNDEEP
javascriptnode.jsexpress
Dave Mackintosh
Dave Mackintosh

Reputation: 2796

Express JS pass console log to view

I want to pass the console.log function to my view in Node Express, I've tried:

res.render('index', {
"title" : 'My page',
"logger": console.log
}

I've also tried this

res.render('index', {
"title" : 'My page',
"logger": function () {
        console.log(arguments);
    }
}

But it always comes through as empty, am I missing something?

fwiw this is how I'm trying to output it in my view

script
    log = #{logger};

For those that want to know the why

I develop on my iPad 2 while on the move (it's jailbroken) and Apple in their wisdom remove the develop toolbar in recent versions so I'm stuck with alerts which are just awful so I want a makeshift console.log to my terminal instead.

[EDIT]

If I used Socket I/O

I could subscribe on the backend to a "log" event on the front end and emit these events and data to console log.

I've not put this as an answer because I don't think it's the best way but this would work I think.

Upvotes: 0

Views: 4447

Answers (1)

mattsch
mattsch

Reputation: 1484

I think you could expose the console.log() function in app.locals if you're using Express 3. See the documentation here.

So, where you configure your server you might have something like...

app.configure(function(){
  // some other configuration code

  app.locals.logger = function(arguments) {
    console.log(arguments);
  }

});

Which you could then access in your view like this...

script
  var log = #{logger};
  log("Hello, world!");

Which in Chrome, for example, logs "Hello, world!" to the web inspector.

Upvotes: 3

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