Pay attention to JSON returned by Ajax operations in JS!

CopyCodeThe Code is as follows: var result = Unescape (XMLHTTP. responsetext );
VaR J = eval ("(" + Result + ")");

VaR J = eval (result );

JSON (JavaScript Object Notation) is a simple data format, which is lighter than XML. JSON is a javascript native format, which means that no special API or toolkit is required to process JSON data in JavaScript.

JSON rules are simple: the object is an unordered set of 'name/value' pairs. An object starts with "{" (left parenthesis) and ends with "}" (right Parenthesis. Each "name" is followed by a ":" (colon); "," (comma) is used to separate the "name/value" pairs. Detailed reference http://www.json.org/json-zh.html