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/ 8 Years ago, tue, july 12, 2016, 12:00:00
I have three tables and i want to check wheter they contain a specific element, e.g. a button with the value 'Previous'. I solved it by using the jquery function find and writing a function, but i need to solve this problem without jquery. Is this possible?
var t1 = document.getElementById(table_one);
var t2 = document.getElementById(table_two);
var t3 = document.getElementById(table_three);
has_prev_button(t1);
has_prev_button(t2);
has_prev_button(t3);
function has_prev_button(element)
{
var has_prev_button = false;
var check = $(element).find(input[type=button]);
for (i=0; i<=check.length-1; i++) {
if (check[i].getAttribute(value) == Previous) {
has_prev_button = true;
}
}
if (has_prev_button) {
document.write(<p>The selected table has a Previous button</p>);
} else {
document.write(<strong><p style='color:red'>The selected table has NO Previous button</p></strong>);
}
}table {
margin-bottom:40px;
border: 1px solid black;
}
td {
border: 2px solid #D8D8D8;
width: 70px;
}<script src=https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js></script>
<table id=table_one>
<tr>
<td>Foo</td>
<td>Bar</td>
<tr>
<tr>
<td><input type=button value=Previous></td>
<td><input type=button value=Next></td>
</tr>
</table>
<table id=table_two>
<tr>
<td>Foo</td>
<td>Bar</td>
<tr>
<tr>
<td></td>
<td><input type=button value=Next></td>
</tr>
</table>
<table id=table_three>
<tr>
<td>Foo</td>
<td>Bar</td>
<tr>
<tr>
<td><input type=button value=Previous></td>
<td><input type=button value=Next></td>
</tr>
</table>
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