Passing variable into page.evaluate - PhantomJS

Question

Is it possible to pass variables in a page.evaluate in my case below?

function myFunction(webpage, arg1, arg2){ var page = require('webpage').create(); page.viewportSize = { width: 1920, height: 1080 }; page.open(webpage, function (status){ if (status == 'success') { page.includeJs("http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js", function(){ page.evaluate(function(){ arg = arg1 + arg2; console.log(arg); }); }); } else { phantom.exit(); } }); }

I tried several methods found on the internet but nothing actually impossible to get to its variables.

Thank you in advance for your help :)

Artjom B. · Accepted Answer · 2014-08-25 13:57:57Z

70

As usual, the answer is clearly stated in the documentation of evaluate function:

As of PhantomJS 1.6, JSON-serializable arguments can be passed to the function. In the following example, the text value of a DOM element is extracted. The following example achieves the same end goal as the previous example but the element is chosen based on a selector which is passed to the evaluate call:

The example that follows demonstrates the usage:

var title = page.evaluate(function(s) { return document.querySelector(s).innerText; }, 'title'); console.log(title);

edited Aug 25, 2014 at 13:57

Artjom B.

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answered Mar 12, 2013 at 8:48

Ariya Hidayat

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5 Comments

Antoine Over a year ago

This is not what I want to do, I want to be able to get to to variables passed as parameters to my function.

Ariya Hidayat Over a year ago

Did you even analyze and try my answer? I believe what you want to do is: page.evaluate(function(arg1, arg2){ console.log(arg1+arg2); }, arg1, arg2);.

Antoine Over a year ago

Yes I want do that ! Thanks you very much ! :D

David Calhoun Over a year ago

I was a bit thrown off too, before playing around with it. I believe this is more clear: page.evaluate(function(str, obj) { ... }, 'myString', {foo: 'bar'});

Mike 'Pomax' Kamermans Over a year ago

I know this answer is from 2013, but it really should be edited so that the syntax that is explained in the comment is the syntax shown in the answer itself, so that visitors in 2017 (or later =) don't have to read through a comment thread to get the actual answer.

Artjom B. · Accepted Answer · 2014-08-26 07:09:54Z

I have phantomjs 1.5.0, so instead of compiling 1.6 or higher version I went for an alternative solution:

So I've saved arguments to selectors.js file

-------------selectors.js starts---------------- var selectors = "div.nice" -------------selectors.js ends----------------

and then injected them into the page:

page.injectJs("selectors.js");

More details can be found here: http://phantomjs.org/api/webpage/method/inject-js.html

denisefeng · Accepted Answer · 2019-05-06 07:09:25Z

I use phantom 4.0.4, below works for me, https://www.npmjs.com/package/phantom

var arg = 'test' page.evaluate(function(arg) { console.log(arg) }, arg);

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