Function signature

userscripts.js:1624–1630

(text)

// 计算SHA-1散列，取最后20个字符
async function signature(text) {
    if (!text) return "";
    const hashBuffer = await crypto.subtle.digest('SHA-1', new TextEncoder().encode(text));
    const hashArray = Array.from(new Uint8Array(hashBuffer));
    const hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
    return hashHex.slice(-20);
}

// 防抖限流函数
function throttle(fn, interval) {