JS Simple loop Traversal method of JSON array

For example, the JSON string inside the database is like this

12345

varstr = ‘[{"name":"宗2瓜","num":"1","price":"122"},{"name":"宗呱呱","num":"1","price":"100"}]‘;var xqo = eval(‘(‘ + str + ‘)‘);for(var i inxqo){　　alert(xqo[i].name);}

The above is JS, the following is jquery to parse the JSON string,

12	varcc = jQuery.parseJSON(data);alert(cc[0].title);

Loop the words, and the same as above

Finally, the background returns JSON data with Echo, not return, otherwise the front end is not received and will be reported:

Uncaught syntaxerror:unexpected end of JSON input

The reason is: The request background interface is, the background is no response (that is, no response), this situation is either the interface letter is wrong, or the background problem.

JS Simple loop Traversal method of JSON array