使用 charAt() 的文本分类不起作用

Question

我想区分用户输入的值。

用户使用输入表单来添加值。

如果'#'是用户输入的值的前面。删除'#'并重定向到 A

除了重定向到B

我试图通过使用 charAt() 来区分这一点，但不起作用

我也不知道 .replace() 正在工作

无论我输入什么，该代码只会转到当前 URL + /?。

请帮我

<form>

  <input id="pathID" placeholder="Search ..." +

         style="height:40px; line-height:40px; padding:0 15px;"> 

  <input onclick="return findSharp()" type="submit" 

         value="Search" style="background:#222;">

</form>

<script>

  function findSharp(){

    var stringName = document.getElementById("pathID").value;

    if(stringName.charAt(0) == '#'){

      findURLA()

    } else {

      findURLB()

    }

  }

                       

  function findURLA(){

    var hashId = document.getElementById("pathID").value;

    var hashIdReplace = hashId.replace('#','');

    window.location.href = 

      'http://localhost:8181/activity-2/' + '?' + 

      'hashtag/' + hashIdReplace;

      return false;

  }

                       

  function findeURLB(){

    window.location.href = 'http://localhost:8181/';

    document.write("I AM URL B");

    return false;

  }

</script>

Answer 1

我在几个地方稍微改变了你的代码给event和event.preventDefault()findSharp 函数从 html 中删除返回语句（更多在这里）向 findURLAA 和 findURLB 添加参数（并修复第二个函数名称中的类型错误）以省略重复读取并消除函数与全局/html 变量的耦合临时注释 findURL-A/B 内容 - 可以取消注释function findSharp(event) {&nbsp; var path = pathID.value;&nbsp; if (path[0] == '#') {&nbsp; &nbsp; findURLA(path)&nbsp; } else {&nbsp; &nbsp; findURLB(path)&nbsp; }&nbsp; event.preventDefault(); // not change location by form}function findURLA(path) {&nbsp; var hashIdReplace = path.replace('#', '');&nbsp; console.log('A:', hashIdReplace)&nbsp; // window.location.href = 'http://localhost:8181/activity-2/' + '?' + 'hashtag/' + hashIdReplace;}function findURLB(path) {&nbsp; console.log('B:', path)&nbsp; //window.location.href = 'http://localhost:8181/';&nbsp; //document.write("I AM URL B");}<form>&nbsp; <input id="pathID" placeholder="Search ..." style="height:40px; line-height:40px; padding:0 15px;">&nbsp; <input onclick="findSharp(event)" type="submit" value="Search"></form>

Answer 2

你可以试试这个。&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; function findSharp(){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var stringName =&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; document.getElementById("pathID").value;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(stringName[0] == '#'){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; findURLA(stringName.slice(1,))&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; else{&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; findURLB(stringName)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; function findURLA(hashId){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; window.location.href = 'http://localhost:8181/activity-2/' + '?' + 'hashtag/' + hashId;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; function findURLB(hashId){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; window.location.href = 'http://localhost:8181/';&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; document.write("I AM URL B");&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }

Answer 3

你的代码在我身上运行良好，也经过测试，唯一的问题是它有一个错误：function findeURLB(){它应该是：function findURLB(){更新：你可以试试这个