js改变url hash

// 设置新的hash值
window.location.hash = 'section2';

// 获取当前的hash值
var currentHash = window.location.hash;

// 监听hashchange事件
window.addEventListener('hashchange', function() {
    console.log('Hash has changed:', window.location.hash);
});

window.addEventListener('hashchange', function() {
    // 根据新的hash值更新页面内容
    switch(window.location.hash) {
        case '#section1':
            updateContentForSection1();
            break;
        case '#section2':
            updateContentForSection2();
            break;
        // 其他情况...
    }
});

function changeHashWithoutScrolling(newHash) {
    var scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
    window.location.hash = newHash;
    document.documentElement.scrollTop = document.body.scrollTop = scrollTop;
}