Return first image url from a string of content

app.js

var rex = /<img[^>]+src="?([^"\s]+)"?[^>]*\/>/g;
		
for (var i = 0; i < count; i++) {
	var content = obj[i].content,
			img = content.match(rex);
	
	var results = rex.exec(content);
	
	if (results != null) {
		var source = results[1];
		obj[i].img = source;
	}
}