js window添加属性

window.myCustomProperty = 'Hello, World!';

console.log(window.myCustomProperty); // 输出: Hello, World!

// 使用命名空间
window.myApp = window.myApp || {};
window.myApp.myCustomProperty = 'Hello, World!';

// 及时清理属性
delete window.myCustomProperty;

// 添加一个基本类型的属性
window.myString = 'This is a string';

// 添加一个对象类型的属性
window.myObject = { key: 'value' };

// 添加一个函数类型的属性
window.myFunction = function() {
    console.log('This is a global function.');
};

// 访问属性
console.log(window.myString); // 输出: This is a string
console.log(window.myObject.key); // 输出: value
window.myFunction(); // 输出: This is a global function.

// 清理属性
delete window.myString;
console.log(window.myString); // 输出: undefined