我收到了这张表格:
<form class="navbar-form navbar-right" role="search" action="https://www.google.com/search" target="_blank">
<div class="form-group">
<input id="search" type="text" name="q" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Search</button>
</form>
当用户点击搜索按钮时,我想在输入中添加一个字符串。
例如,当用户输入&#34; Foo&#34;并提交表单,我希望最终的网址为https://www.google.com/search?q=FooSTRING
,而不是https://www.google.com/search?q=Foo
。
我将如何实现这一目标?
答案 0 :(得分:1)
向表单提交添加一个事件处理程序,该字符串将在输入之前将字符串附加到输入。来自another StackOverflow article:
window.onload = function() {
document.getElementById('theForm').onsubmit = function() {
var txt = document.getElementById('txtSearch');
txt.value = "updated " + txt.value;
};
};
您显然必须修改ID选择以匹配您的HTML才能使其正常工作。
如果你想在JQuery中这样做:
$('#theForm').submit(function() {
var txt = $('#txtSearch');
txt.val("updated " + txt.val());
});
答案 1 :(得分:-1)
按下更改输入值的按钮可以进行onclick事件,从而更改最终的URL。这是代码:
<!DOCTYPE html>
<html>
<head>
<script>
function addString()
{
var x = document.getElementById("search");
x.value = x.value + "STRING";
}
</script>
</head>
<body>
<form class="navbar-form navbar-right" role="search" action="https://www.google.com/search" target="_blank">
<div class="form-group">
<input id="search" type="text" name="q" class="form-control" placeholder="Search">
</div>
<button onclick="addString()" type="submit" class="btn btn- default">Search</button>
</form>
</body>
</html>