解析并重命名Typescript中的可选参数

function processUserData(name: string, age?: number) {
  if (age) {
    console.log(`${name} is ${age} years old.`);
  } else {
    console.log(`${name} is of unknown age.`);
  }
}

function processUserDataWithRenamedParam(name: string, customAge?: number) {
  const age = customAge; // 重命名可选参数为新的变量名
  if (age) {
    console.log(`${name} is ${age} years old.`);
  } else {
    console.log(`${name} is of unknown age.`);
  }
}

processUserData("John"); // 输出：John is of unknown age.
processUserData("Jane", 25); // 输出：Jane is 25 years old.

processUserDataWithRenamedParam("John"); // 输出：John is of unknown age.
processUserDataWithRenamedParam("Jane", 25); // 输出：Jane is 25 years old.