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javascript - 如何使这个“转换”按钮将文本从输入转换为二进制？

问题描述

我正在尝试创建一个可以使用 JavaScript 将文本转换为二进制的基本网站，但我真的不知道如何使Convert!按钮工作。有没有人有我可以使用的简单修复？（不要介意 CSS 缺少一些代码，我还没有完成。）

function convert() {
  const input_el = document.querySelector(".input-text");
  const output_el = document.querySelector(".output-binary");

  input_el.addEventListener("input", (event) => {
    let input_text = event.target.value;
    let output_arr = [];
    
    for (var i = 0; i < input_text.length; i++) {
      output_arr.push(input_text.charCodeAt(i).toString(2));
    }
    
    output_el.innerHTML = output_arr.join(" ");
  });
}
body {
  margin: 0;
  padding: 0;
}

header {
  padding: 30px;
  background: #09A954;
  color: white;
  text-align: center;
  font-family: arial;
  font-size: 30px;
}

.navbar {
  padding: 12px;
  background: #363636;
  color: white;
  font-size: 15px;
}

.container {
  display: flex;
  flex-direction: column;
  padding: 80px;
  background: #B3B3B3;
}

.input_box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
  background: #D35400;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0px 3px 5px #000000;
  height: 100px;
  width: ;
}

input {
  background: #D35400;
  border: none;
  border-bottom: 2px solid #000000;
  font-size: 15px;
}

button {
  width: 100px;
}

.output_box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
  background: #2980B9;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0px 3px 5px #000000;
  height: 100px;
  width: ;
}

p2 {
  font-size: 30px;
  font-family: calibri;
}

p4 {
  font-size: 15px;
  font-family: arial;
}
<!DOCTYPE html>
<html>

<head>
  <title>Text to binary converter</title>
  <meta charset="utf-8">
  <link rel="stylesheet" href="style.css">
</head>

<body>
  <header>
    <h1>Text to binary converter</h1>
  </header>

  <div class="navbar">
    <p1>link</p1>
  </div>

  <div class="container">
    <div class="input_box">
      <p2>This is what a human sees:</p2><br>
      <p3>Please enter text below</p3><br>
      <input type="text" name="" class="input-text">
    </div><br><br>

    <button onclick="convert()">Convert!</button><br><br>

    <div class="output_box">
      <p2>This is what a machine sees:</p2><br>
      <p4 class="output-binary"></p4>
    </div>
  </div>

  <script type="text/javascript" src="main.js"></script>

</body>

</html>

链接到 JSFiddle：https ://jsfiddle.net/SaltySandwich/65te8omy/

标签： javascripthtml

解决方案

我修复了你现有的项目。
我对 JavaScript 采取了一种更简单的方法。您可以在 6 行 JavaScript 代码中编写所需的所有内容：)
对于您的输出，您应该<output>使用<input>.
看看这个：

function convert() {
  var output = document.getElementById("output_text");
  var input = document.getElementById("input_text").value;
  output.value = "";
  for (i = 0; i < input.length; i++) {
    output.value += input[i].charCodeAt(0).toString(2) + " ";
  }
}
body {
  margin: 0;
  padding: 0;
}

header {
  padding: 30px;
  background: #09A954;
  color: white;
  text-align: center;
  font-family: arial;
  font-size: 30px;
}

.navbar {
  padding: 12px;
  background: #363636;
  color: white;
  font-size: 15px;
}

.container {
  display: flex;
  flex-direction: column;
  padding: 80px;
  background: #B3B3B3;
}

.input_box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
  background: #D35400;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0px 3px 5px #000000;
  height: 100px;
  width: ;
}

input {
  background: #D35400;
  border: none;
  border-bottom: 2px solid #000000;
  font-size: 15px;
}

input:focus {
  border: none;
  border-bottom: 2px solid #000000;
  font-size: 15px;
  outline: none;
}

button {
  width: 100px;
}

.output_box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
  background: #2980B9;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0px 3px 5px #000000;
  height: 100px;
  width: ;
}

p2 {
  font-size: 30px;
  font-family: calibri;
}

p4 {
  font-size: 15px;
  font-family: arial;
}
<!DOCTYPE html>
<html>

<head>
  <title>Text to binary converter</title>
  <meta charset="utf-8">
  <link rel="stylesheet" href="style.css">
</head>

<body>
  <header>
    <h1>Text to binary converter</h1>
  </header>

  <div class="navbar">
    <p1>link</p1>
  </div>

  <div class="container">
    <div class="input_box">
      <p2>This is what a human sees:</p2><br>
      <p3>Please enter text below</p3><br>
      <!--INPUT FIELD-->
      <input id="input_text" value="Human sees this" />
    </div><br><br>

    <button onclick="convert()">Convert!</button><br><br>

    <div class="output_box">
      <p2>This is what a machine sees:</p2><br>
      <!--INPUT FIELD-->
      <output id="output_text">
        </div>
    </div>

    <script src="main.js"></script>

</body>

</html>

哦..我还稍微编辑了您的 CSS，因此输入周围没有烦人的边框...您可以通过删除以下内容来删除我的更改：

  input:focus {
    border: none;
    border-bottom: 2px solid #000000;
    font-size: 15px;
    outline: none;
  }
如果您需要清除任何内容，请务必在此帖子下发表评论：）

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