如何仅使用jQuery允许字符串中的某些特定字符

function allowOnlySpecificCharacters(inputString, allowedCharacters) {
  // 使用正则表达式匹配允许的字符，并将不允许的字符替换为空字符串
  var result = inputString.replace(new RegExp("[^" + allowedCharacters + "]", "g"), "");
  return result;
}

// 示例用法
var inputString = "Hello, World!";
var allowedCharacters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

var result = allowOnlySpecificCharacters(inputString, allowedCharacters);
console.log(result); // 输出：HelloWorld