js 如何更改别的js变量

// 使用 window 对象window.myVariable = "新值";// 直接赋值myVariable = "新值";

// 函数参数function changeVariable(variable) {  variable = "新值";}let myVariable = "旧值";changeVariable(myVariable); // myVariable 保持为 "旧值"// 闭包let changeVariable = (function() {  let variable = "旧值";  return function() {    variable = "新值";  };})();changeVariable(); // variable 更改为 "新值"