连字符在网页抓取中转换为逗号

Question

I am scraping data from page with help of JavaScript & displaying on fancybox popup.

var str = "$26.61 - Framed bulletin board offers a self-stick surface for quick and easy note positioning, repositioning, and removing.";

When I output it, however, I get this:

$26.61 , Framed bulletin board offers a self,stick surface for quick and easy note positioning, repositioning, and removing.

Here is some javascript:

var pro_desc = $('meta[name=Description]').attr("content");
var shortDesc = $.trim(pro_desc).substring(0, 225);
var count1 = shortDesc.search(/$/i);
if(count1!=-1) {
    var short_desc1 = shortDesc.replace("$", "");
    var short_desc2 = short_desc1.split("-");
    var desc1 = short_desc2;
} else { 
    alert('In Else Section---'+shortDesc);
} 
var product_description = desc1;
alert(product_description); 

Why does my output have , 's instead of - 's?

Answer 1

Why does my output have , 's instead of - 's?

You are splitting on hyphens:

var short_desc2 = short_desc1.split("-");

So short_desc2 is an array containing strings, each of which was separated from the other by a hyphen. Example:

'foo-bar'.split('-');
// returns the array ['foo', 'bar']

Now, when you alert an array ( alert(product_description); ), ie convert it back to a string, the elements are concatenated with a comma in between:

alert('foo-bar'.split('-'))
// alerts 'foo,bar'
// or
alert([1,2,3]);
// alerts '1,2,3'

It's the same as doing:

alert(arr.join(','));