正則表達式

Question

我有來自正則表達式的文本：

This post contains forecast for BTC/USDC This message was written by guest user, and is available at site.com

我需要像這樣添加正則表達式點： "BTC/USDC. This message" 。 我怎樣才能做到這一點？

Answer 1

您可以通過提供正則表達式來使用String.prototype.replace()來查找BTC/USDC ，然后使用回調模式返回帶有更新數據的字符串

 var str= "This post contains forecast for BTC/USDC This message was written by guest user, and is available at site.com" const newStr= str.replace(/BTC\/USDC/, (match) => { return `${match}.`; }) console.log(newStr);