javascript 在输入错误密码时显示消息
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display message on wrong password entry
提问by user3487121
I have a submit button which only works when "victory" is typed into the form. Now I am trying to work on an error message to display "wrong keyword entry" if the text entered into the form field isn't "victory". here is the code
我有一个提交按钮，只有在表单中输入“胜利”时才有效。现在，如果输入到表单字段中的文本不是“胜利”，我正在尝试处理一条错误消息以显示“错误的关键字输入”。这是代码
<form name="input" action="index.html" method="post" onsubmit="return check();">
<input type="text" maxlength="7" autocomplete="off" name="" id="victory">
<br><input type="submit" class="bigbutton" value="NEXT">
</form>
<script>
function check(){
if(document.getElementById("victory").value == "victory")
return true;
else
return false;
}
}
采纳答案by ElliotSchmelliot
If I were you I'd add an HTML element to stuff an error into. Then you can style it with CSS however you'd like.
如果我是你，我会添加一个 HTML 元素来填充错误。然后，您可以根据需要使用 CSS 对其进行样式设置。
<div id="error"></div>
Then your function would look something like this:
那么你的函数看起来像这样：
function check(){
if(document.getElementById("victory").value == "victory")
return true;
else
document.getElementById("error").innerHTML = "Wrong keyword entry."
return false;
}
回答by T J
You can simply add the alert in the elsecondition…
您可以简单地在else条件中添加警报......
function check(){
if(document.getElementById("victory").value == "victory") {
return true;
}
else {
alert("wrong keyword entry");
return false;
}
}
