js对象转json字符串,并保留js对象中的javascript脚本

</pre><pre name="code" class="javascript">

/**
 * Created by shantao on 2016/2/1.
 */
/**
 * json对象转字符串
 *
 * @param obj json对象
 * @returns
 */
function obj2Str(obj) {
  switch (typeof (obj)) {
    case 'object':
      var ret = [];
      if (obj instanceof Array) {
        for ( var i = 0, len = obj.length; i < len; i++) {
          ret.push(obj2Str(obj[i]));
        }
        return '[' + ret.join(',') + ']';
      } else if (obj instanceof RegExp) {
        return obj.toString();
      } else {
        for ( var a in obj) {
          ret.push(a + ':' + obj2Str(obj[a]));
        }
        return '{' + ret.join(',') + '}';
      }
    case 'function':
      return obj;
    case 'number':
      return obj.toString();
    case 'string':
      return "\"" + obj.replace(/(\\|\")/g, "\\$1").replace(/\n|\r|\t/g, function(a) {
          return ("\n" == a) ? "\\n" : ("\r" == a) ? "\\r" : ("\t" == a) ? "\\t" : "";
        }) + "\"";
    case 'boolean':
      return obj.toString();
    default:
      return obj.toString();
  }
}

/**
 * json对象转字符串
 *
 * @param obj json对象
 * @param needScript true|false 是否保留json对象中的javaScript脚本
 */
function formatJsonObjToString(obj, needScript) {
  var resultString = "";
  if (needScript) {
    resultString = obj2Str(obj);
  } else {
    resultString = JSON.stringify(obj);
  }
  return resultString;
}