2018-08-21から1日間の記事一覧
const now = Date.now() console.info(now) //->1534838352015 参考 Date.now() - JavaScript | MDN
const filename = 'foo/bar.ext.jpg' //方法1 filename.split('.').slice().reverse()[0] //->"jpg" //方法2 filename.split('.').pop(); //->"jpg" 参考 How can I get file extensions with JavaScript? - Stack Overflow