💛

JavaScript YYYY-MM-DD

輸出: 2025-01-15

快速參考

輸出

2025-01-15

在JavaScript中將日期格式化為YYYY-MM-DD

💛 JavaScript

const date = new Date();

// Method 1: toISOString (recommended)
const formatted = date.toISOString().split('T')[0];
console.log(formatted); // Output: 2025-12-31

// Method 2: Manual formatting
const yyyy = date.getFullYear();
const mm = String(date.getMonth() + 1).padStart(2, '0');
const dd = String(date.getDate()).padStart(2, '0');
console.log(`${yyyy}-${mm}-${dd}`); // Output: 2025-12-31