无法读取未定义的属性“send”

let xhr = new XMLHttpRequest();
if (xhr) {
    xhr.open('GET', 'https://api.example.com/data', true);
    xhr.send();
} else {
    console.error('Failed to create XMLHttpRequest object');
}

fetch('https://api.example.com/data')
    .then(response => {
        if (!response.ok) {
            throw new Error('Network response was not ok');
        }
        return response.json();
    })
    .then(data => console.log(data))
    .catch(error => console.error('There was a problem with the fetch operation:', error));

let myObject;
// 假设myObject在某些情况下可能为undefined
if (myObject && myObject.send) {
    myObject.send();
} else {
    console.error('myObject is not defined or does not have a send method');
}