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javascript - 将 JavaScript 代码更改为我自己脚本的 jQuery

转载 作者:行者123 更新时间:2023-12-03 08:51:06 24 4
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我需要帮助将我自己的代码的JavaScript 代码更改为jQuery

任务:

当我单击树上的“+”按钮时,它会在表中显示/添加一个新行,并且该按钮也会更改为“-”(减号)。之后,我再次单击减号(-)按钮,它隐藏了该行。

上面的任务是用javascript完成的。我需要将其转换为 jQuery。是否可以?如果是的话,请帮助我。提前致谢。

代码如下:

<html>

<head>
<title>Appending table row in a table</title>
<script language = "javascript">
function changeImage(that,x)
{
var clickedrow = document.getElementById("append"+x);
var subrow = document.getElementById("append"+x+"a");
var table = document.getElementById("mytable");
if(that.src === "http://renko-server/sample/arun/jquery/images/plus.gif")
{
that.src = "http://renko-server/sample/arun/jquery/images/minus.gif";
if(subrow)
{

subrow.style.display="";
}
else
{

subrow = table.insertRow(clickedrow.rowIndex+1);
subrow.id="append"+x+"a";
var cell1 = subrow.insertCell(0);
var cell2 = subrow.insertCell(1);
var cell3 = subrow.insertCell(2);
cell1.innerHTML = "";
cell2.innerHTML = "Kumar";
cell3.innerHTML = "Madurai";
}
}
else
{
that.src = "http://renko-server/sample/arun/jquery/images/plus.gif";
subrow.style.display="none";
}
}
</script>
</head>

<body>
<table id="mytable" class="appendtable">
<tr><td></td><td><b>Name</b></td><td><b>Location</b></td></tr>
<tr id="append1"><td><img id="plus1" onclick="javascript:changeImage(this,1);" src="http://renko-server/sample/arun/jquery/images/plus.gif" / ></td><td>Arun</td><td>Sivakasi</td></tr>

<tr id="append2"><td><img onclick="javascript:changeImage(this,2);" id="plus2" src="http://renko-server/sample/arun/jquery/images/plus.gif"/></td><td>Raj</td><td>Kovai</td></tr>

<tr id="append3"><td><img id="plus3" src="http://renko-server/sample/arun/jquery/images/plus.gif" onclick="javascript:changeImage(this,3);"/></td><td>Jerome</td><td>Bangalore</td></tr>

</table>
</body>
</html>

最佳答案

像这样改变你的html:-

<table id="mytable" class="appendtable">
<tr><td></td><td><b>Name</b></td><td><b>Location</b></td></tr>
<tr id="append1"><td><img id="plus1" onclick="changeImage(this);" src="http://renko-server/sample/arun/jquery/images/plus.gif" /> ></td><td>Arun</td><td>Sivakasi</td></tr>
// ^^^ this is change
<tr id="append2"><td><img onclick="changeImage(this);" id="plus2" src="http://renko-server/sample/arun/jquery/images/plus.gif" /></td><td>Raj</td><td>Kovai</td></tr>
<tr id="append3"><td><img id="plus3" src="http://renko-server/sample/arun/jquery/images/plus.gif" onclick="javascript:changeImage(this);" /></td><td>Jerome</td><td>Bangalore</td></tr>
</table>

你的 jquery 函数是:-

function changeImage(that) {
var clickedrow = $(that);
var subrow = $('#' + clickedrow.attr('id') + 'a');
var table = $("#mytable");
if (clickedrow.attr('src') === "http://renko-server/sample/arun/jquery/images/plus.gif") {
clickedrow.attr('src', "http://renko-server/sample/arun/jquery/images/minus.gif");
if (subrow.length) {
subrow.show();
}
else {
subrow = $('<tr><td></td><td>Kumar</td><td>Madurai</td></tr>').insertAfter(clickedrow.parents('tr'));
}
}
else {
clickedrow.attr('src', "http://renko-server/sample/arun/jquery/images/plus.gif");
subrow.hide();
}
}

Demo

或者,如果您不想直接在图像上使用 onclick Try this

关于javascript - 将 JavaScript 代码更改为我自己脚本的 jQuery,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32666389/

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