Pass arguments with page.evaluate
I've had that exact problem. It can be done with a little trickery, because page.evaluate
also can accept a string.
There are several ways to do it, but I use a wrapper called evaluate
, which accepts additional parameters to pass to the function that must be evaluated on the webkit side. You would use it like this:
page.open(url, function() { var foo = 42; evaluate(page, function(foo) { // this code has now has access to foo console.log(foo); }, foo);});
And here is the evaluate()
function:
/* * This function wraps WebPage.evaluate, and offers the possibility to pass * parameters into the webpage function. The PhantomJS issue is here: * * http://code.google.com/p/phantomjs/issues/detail?id=132 * * This is from comment #43. */function evaluate(page, func) { var args = [].slice.call(arguments, 2); var fn = "function() { return (" + func.toString() + ").apply(this, " + JSON.stringify(args) + ");}"; return page.evaluate(fn);}
The change has been pushed and now you can use it as
page.open(url, function() { var foo = 42; page.evaluate( function(foo) { // this code has now has access to foo console.log(foo); }, foo);}
The push details are here: https://github.com/ariya/phantomjs/commit/81794f9096
You can pass in the arguments to the function as arguments to page.evaluate.
Example:
page.evaluate(function(arg1, arg2){ console.log(arg1); //Will print "hi" console.log(arg2); //Will print "there"}, "hi", "there");