CasperJS require('utils').dump(this.logs) is undefined - casperjs

Question

I'm writing a CasperJS script and would like to dump the entire contents of what has been written to the logs since execution start. In the casperjs documentation, it says,
You can also dump a JSON log of your Casper suite just by rendering the contents of the Casper.logs property
Unfortunately, when I use the example code from the documentation, am getting 'undefined' from the casper.logs value. Here is sample code:
casper = require('casper').create({
verbose: true,
logLevel: 'info'
});
casper.start();
casper.thenOpen('http://casperjs.org', function() {
this.log("this is a log", 'info');
this.log(this.getTitle(), 'info');
});
casper.thenOpen('http://phantomjs.org', function() {
this.log(this.getTitle(), 'info');
require('utils').dump(this.logs);
});
casper.run(function() {
this.exit();
});
And here is the output of this code:
[info] [phantom] Starting...
[info] [phantom] Running suite: 4 steps
[info] [phantom] Step anonymous 2/4 http://casperjs.org/ (HTTP 200)
[info] [phantom] this is a log
[info] [phantom] CasperJS, a navigation scripting and testing utility for PhantomJS and SlimerJS
[info] [phantom] Step anonymous 2/4: done in 913ms.
[info] [phantom] Step anonymous 4/4 http://phantomjs.org/ (HTTP 200)
[info] [phantom] PhantomJS | PhantomJS
undefined
[info] [phantom] Step anonymous 4/4: done in 1340ms.
[info] [phantom] Done 4 steps in 1359ms

Answer 1

According to the code you should use:
require('utils').dump(this.result.log);
There is no such thing as this.logs anymore.
Since this is not really documented, it may change in future versions. I suggest you either register to the log event or use this.echo.