js判断是否电脑端

function isDesktop() {
    // 检查屏幕宽度，通常电脑屏幕宽度较大
    const screenWidth = window.screen.width;
    if (screenWidth > 1024) { // 假设1024px为电脑和平板/手机的界限
        return true;
    }

    // 检查用户代理字符串，查找常见的桌面浏览器标识
    const userAgent = navigator.userAgent;
    const desktopAgents = ['Windows', 'Macintosh', 'X11', 'Linux x86_64'];
    for (let agent of desktopAgents) {
        if (userAgent.indexOf(agent) > -1) {
            return true;
        }
    }

    // 如果以上条件都不满足，则可能不是电脑端
    return false;
}

// 使用函数
if (isDesktop()) {
    console.log('用户在电脑端浏览');
} else {
    console.log('用户不在电脑端浏览');
}

function isTouchDevice() {
    return ('ontouchstart' in window) || (navigator.maxTouchPoints > 0) || (navigator.msMaxTouchPoints > 0);
}

// 结合触摸设备检测
function isDesktopImproved() {
    const screenWidth = window.screen.width;
    const isTouch = isTouchDevice();
    const userAgent = navigator.userAgent;
    const desktopAgents = ['Windows', 'Macintosh', 'X11', 'Linux x86_64'];

    if (screenWidth > 1024 && !isTouch) {
        return true;
    }

    for (let agent of desktopAgents) {
        if (userAgent.indexOf(agent) > -1 && !isTouch) {
            return true;
        }
    }

    return false;
}