To find the index of the last occurrence of a substring in a string, ... returns -1 because the string JS IndexOf does not contain the substring js but JS . ... <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>

string.indexOf(sub1)+sub1.length; var string1 = this.string.substr( ... ... <看更多>

... Contains Another String Using JavascriptSource Code: http://1bestcsharp.blogspot.com/2017/01 ... ... <看更多>

NodeJs slice string test. Str length:99900. Time: 4ms. Str length:1. real 0m0.059s user 0m0.056s sys 0m0.000s. Dart slice (substring) string ... ... <看更多>