javascript 如何在 alert() 框中输入输入？
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How can I put an input in the alert() box?
提问by limusina10
I have a question that I want to put an input in an alert box. What thing I have to do to create this? To make it I've to put an another tag, attrib, special properities, etc... Thanks. I think could be like this:
我有一个问题，我想在警告框中输入一个输入。我必须做什么才能创建这个？为此，我必须添加另一个标签、属性、特殊属性等……谢谢。我想可能是这样的：
<!DOCTYPE html>
<html>
<head>
<title>example</title>
</head>
<body>
<script type="text/javascript">
alert("<input></input>");
</script>
</body>
</html>回答by baao
You can't put anything in an alert box. As the name indicates, it's an alert. You might be looking for a promptwhich has an input text field, or confirmto get a true / false depending on user selection.
您不能在警报框中放置任何东西。顾名思义，这是一个警报。您可能正在寻找具有输入文本字段的提示，或者根据用户选择确认获得真/假。
let foo = prompt('Type here');
let bar = confirm('Confirm or deny');
console.log(foo, bar);回答by Ioannis Papadopoulos
You can use
您可以使用
var resp = window.prompt("Your question")
window.prompt is a blocking method (like alert). The program execution will halt until the user enters a value.
window.prompt 是一种阻塞方法（如警报）。程序执行将停止，直到用户输入一个值。
回答by Hello World
Just use var value = prompt('Your Question');
只需使用 var value = prompt('Your Question');
回答by Mojtaba Nava
This code been executed:
这段代码被执行：
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript Confirm Box</h2>
<button onclick="myFunction()">Try it</button>
<input id="demo" />
<script>
function myFunction() {
var txt;
if (confirm("Press a button!")) {
txt = "You pressed OK!";
} else {
txt = "You pressed Cancel!";
}
document.getElementById("demo").innerHTML = txt;
console.log(txt);
}
</script>
</body>
</html>