chapter无法使用find方法筛选strong标签取不到text的值，请大神指点
var http = require('http')
var cheerio = require('cheerio')
var url = 'http://www.imooc.com/learn/348'
function fliter(html){
var $ = cheerio.load(html)
var chapters = $('.chapter')
console(chapters[0].find('strong').text())
}
http.get(url,function(res){
var html = ''
res.on('data',function(data){
html +=data
})
res.on('end',function(){
fliter(html)
})
}).on('error',function(){
console.log('错误!!!')
})报错如下：
