googlematch.js
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/**
* Takes provided terms passed as arguments and query google for the number of
* estimated results each have.
*
* Usage:
* $ casperjs samples/googlematch.js nicolas chuck borris
* nicolas: 69600000
* chuck: 49500000
* borris: 2370000
* winner is "nicolas" with 69600000 results
*/
var casper = new require('casper').create({
verbose: true
}), terms = casper.cli.args, scores = [], i = 0;
casper.fetchScore = function() {
return this.evaluate(function() {
var result = document.querySelector('#resultStats').innerText;
return ~~(/Environ ([0-9\s]{1,}).*/.exec(result)[1].replace(/\s/g, ''));
});
};
if (terms.length < 2) {
casper.echo('Usage: casperjs googlematch.js term1, term2 [, term3]...').exit();
}
casper.echo('Let the match begin!');
casper.start("http://google.fr/");
casper.each(terms, function(self, term, i) {
self.then(function(self) {
self.fill('form[action="/search"]', { q: term }, true);
}).then(function(self) {
var score = self.fetchScore();
scores.push({
term: term,
score: score
});
self.echo(term + ': ' + score);
});
});
casper.run(function(self) {
scores.sort(function(a, b) {
return b.score - a.score;
});
var winner = scores[0];
self.echo('winner is "' + winner.term + '" with ' + winner.score + ' results');
self.exit();
});