Question

因此，对于类赋值，我需要一个带有两个输入的简单形式。一个用于名称，一个用于年龄。输入这两个后，会出现一个提示，询问用户喜欢的颜色。然后将该颜色应用于页面背景，然后弹出一个警告：用户名+＆＃34;你的颜色应用于bg。你是＆＃34; + userAge ...

我的问题是，我可以做其中一件事。但不是同时另一个。

那么如何在用户在提示符上单击“确定”后显示警告？

＆＃13;

function getNameAge( userName, userAge ) {
  var nameAndAge = userName + " your favorite color was applied to the background. " + "You are " + userAge;
  return nameAndAge;
}

function getColor( favColor ) {
   document.body.style.backgroundColor = favColor;
   alert(nameAndAge)
}

//Need to put these two in one click of a button
document.getElementById( "submit" ).onclick = function(){
  getColor( prompt("Please enter your favorite color." ));
}

document.getElementById( "submit" ).onclick = function(){
  alert( getNameAge( 
    document.getElementById( "name" ).value,
    document.getElementById( "age" ).value 
  ));
}

＆＃13;

<form name="frmArea">
Please enter your Name and Age:<br>
Name: <input type="text" name="txtName" id="name"><br>
Age: <input type="text" name="txtAge" id="age"><br>
<input type="button" value="Submit" id="submit">
</form>
<script src="../Homework 18/favColor.js"></script>
</body>

＆＃13;

Answer 1

等我知道了，我有两个小时的脑屁

document.getElementById( "submit" ).onclick = function(){
  getColor( prompt("Please enter your favorite color." ));
  alert( getNameAge( 
    document.getElementById( "name" ).value,
    document.getElementById( "age" ).value 
  ));
}

确认提示后输出警报

1 个答案: