javascript - 使用 JavaScript 删除值输入 onclick

Question

单击时如何删除输入中的任何值？我有两个函数 fillField(input) function clearField(input) 并且我想在所有输入中使用它们。我的代码是:

<script>
// identify form elements:
var search_code = document.getElementById('search_code');
var insert_code = document.getElementById('insert_code');
var result = document.getElementById('result');
var button = document.getElementById('button');

// respond to button click
button.onclick = function validate() {
    // show verification result:
    if(search_code.value == insert_code.value) {
        result.textContent = 'code is ok';
        result.className = "ok";
    } else {
       result.textContent = 'code is not ok';
       result.className = "not-ok";
    }
   // clear input when wrong:
    if (search_code.value !== insert_code.value) {
        insert_code.value = '';
    }
    return false;
};

function fillField(input) {
      if(input.value == "any value")
         input.value="";
};

function clearField(input) {
      if(input.value == "")
         input.value= "any value";
};

insert_code.oninput = function () {
    result.textContent = ''; // clear result;
};
     </script>

<form>
        <input type="text" name="search_code" onblur="fillField(this,'insert code');" onfocus="clearField(this,'insert code');" id="search_code" value=""/><br/>
        <input type="" name="insert_code" onblur="fillField(this,'scan code');" onfocus="clearField(this,'scan code');" id="insert_code" placeholder="scand code"value=""/><br/><br/>
        <input type="submit" id="button" name="button" value="validation" />
    </form>

非常感谢!

Answer 1

我解决了这个问题。有需要的 friend ，代码是:

<script>
// identify form elements:
var search_code = document.getElementById('search_code');
var insert_code = document.getElementById('insert_code');
var result = document.getElementById('result');
var button = document.getElementById('button');

// respond to button click
button.onclick = function validate() {
    // show verification result:
    if(search_code.value == insert_code.value) {
        result.textContent = 'cod gasit';
        result.className = "ok";
    } else {
       result.textContent = 'codul nu este corect';
       result.className = "not-ok";
    }
   // clear input when wrong:
    if (search_code.value !== insert_code.value) {
        insert_code.value = '';
    }
    return false;
};
//clear text when click on input
function clearField(input) {
         input.value = "";
};

     </script>

     <form>
        <input type="text" name="search_code" onfocus="clearField(this, this.placeholder='');" onblur="this.placeholder='introdu codul'" id="search_code" placeholder="introdu codul" autocomplete="off" value=""/><br/>
        <input type="" name="insert_code" onfocus="clearField(this, this.placeholder='');" onblur="this.placeholder='scaneaza codul'" id="insert_code" placeholder="introdu codul" autocomplete="off" value=""/><br/><br/>
        <input type="submit" id="button" name="button" value="verifica COD" />
    </form>
  <div id="result"></div>