Question

使用string.split方法时如何保留字符

我正在使用string.split方法在array中添加项目。这就是我的字符串的样子：

let modalMessage="Hello, my name is /# Ann #/. I'm working for /# IStaff #/, could you please call me back"

我正在按“ /”字符进行分割，编辑，将字符串保存为新值并发送回服务器。此“ /”不保存。但是，当此“ /＃****＃/模板存在时，服务器会读取新值。如何解决此问题？

此处代码：

const App = ({ modalMessage }) => ( 
    <p> 
        {modalMessage .split("/") .map(text => (
            text.includes("#") ? <input value={text} /> : text
        ))} 
    </p>
);

Answer 1

如果要保留斜杠/，则可以使用包含捕获括号()的正则表达式：

> let modalMessage = "Hello, my name is /# Ann #/. I'm working for /# IStaff #/, could you please call me back";
> let test = modalMessage.split(/(\/)/);
> test
  (9) ["Hello, my name is ", "/", "# Ann #", "/", ". I'm working for ", "/", "# IStaff #", "/", ", could you please call me back"]

vs不带正则表达式：

> let modalMessage = "Hello, my name is /# Ann #/. I'm working for /# IStaff #/, could you please call me back";
> let test2 = modalMessage.split('/');
> test2
  (5) ["Hello, my name is ", "# Ann #", ". I'm working for ", "# IStaff #", ", could you please call me back"]

使用string.split时如何保留字符

1 个答案: