我有以下脚本:
<script type= 'text/javascript'>
function displayPlayer() {
var input = document.getElementById("player_stuff").elements;
var position = input[0];
var player_id = input[1];
document.getElementById('disp_player').innerHTML = position + player_id
}
</script>
还有一个简单的 HTML 表单:<form id = 'player_stuff' onsubmit = 'displayPlayer()'>
Player's Position:<br>
<input type="radio" name="position" value="p1" checked>Position One
<input type="radio" name="position" value="p2" checked>Position Two
<input type="radio" name="position" value="p3" checked>Position Three
<input type="radio" name="position" value="p4" checked>Positin Four
<br/>
Add by Player ID:<br>
<input type='text' name='player_id'>
<input type="submit" value="Submit Player" id='smit' >
</form>
<div id = 'roster'>
<h3>Current Roster</h3>
<p id= 'disp_player'></p>
</div>
这个想法是,当我点击 Submit Player 按钮时,它会触发 displayPlayer() 函数并将位置名称和玩家 ID 添加到<p id= 'disp_player'></p>
标签。我做错了什么,因为什么都没有出现?
最佳答案
您可以通过使用 <button type="button">
完全避免提交,然后您可以绑定(bind) onclick
的 button
事件。您可以通过避免输入列表而不是使用 querySelector
来简化事情:
<form id = 'player_stuff'>
Player's Position:<br>
<input type="radio" name="position" value="p1" checked>Position One
<input type="radio" name="position" value="p2">Position Two
<input type="radio" name="position" value="p3">Position Three
<input type="radio" name="position" value="p4">Positin Four
<br/>
Add by Player ID:<br>
<input type='text' name='player_id'>
<input type="button" value="Submit Player" id='smit' >
</form>
<div id="disp_player"></div>
然后使用 querySelector
和 querySelectorAll
document.getElementById('smit').onclick = function () {
var checkedPosition =
document.querySelectorAll("#player_stuff [name='position']:checked");
var playerId =
document.querySelector("#player_stuff [name='player_id']");
var position = checkedPosition[0].value;
var player_id = playerId.value;
document.getElementById('disp_player').innerHTML =
position + " " + player_id;
}
见 fiddle here 。关于javascript - 将 JavaScript onclick() 添加到 HTML 表单提交,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/30282714/