Introduction to the JavaScript substring() method ... The substring() method accepts two parameters: startIndex and endIndex : ... If you omit the endIndex , the ... ... <看更多>

You can use the substring method of JavaScript string objects: s = s.substring(0, s.length - 4). It unconditionally removes the last four characters from ... ... <看更多>

從API 取回一筆資料是日期字串，如： 20210629 ，開出的需求是要符合設計稿的 2021/06/29 ，頓時不知道要用什麼方法，後來得知有一個字串分割的 substring ... ... <看更多>

V8, used by node.js, has a cheap substring operation for short-lived substrings. It creates a small object that points into the original ... ... <看更多>