how get information from variable in Jquery [closed] - javascript

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I have a variable X.
X="<table>...</table>"
How to get access to information in X using jQuery?
for example:
X="<table> <thead> <tr> <td>id</td> <td>name</td> <td>mpg</td> <td>cylinders</td> </tr> </thead> <tbody> <tr> <td>1</td> <td>chevrolet chevelle malibu</td> <td>18.0</td> <td>8</td> </tr> <tr> <td>2</td> <td>plymouth satellite</td> <td>18.0</td> <td>8</td> </tr> <tr> <td>3</td> <td>amc rebel sst</td> <td>16.0</td> <td>8</td> </tr> </tbody> </table>"
and I want to have information from 2 line.

You can do:
$(X).find("element").whatever
Example:
var x = "<div><span>hey</span></div>";
console.log($(x).find("span").text()); //logs "hey"

If you want to access text information then you can use
$(x).find("element").text()
if you want to access html content of an element then you can use
$(x).find("element").html()
if you want to find element inside then you can use
$(x).find("element")

With your specific question above, this will get you the text from the second row of the table...
var x = "<table> <thead> <tr> <td>id</td> <td>name</td> <td>mpg</td> <td>cylinders</td> </tr> </thead> <tbody> <tr> <td>1</td> <td>chevrolet chevelle malibu</td> <td>18.0</td> <td>8</td> </tr> <tr> <td>2</td> <td>plymouth satellite</td> <td>18.0</td> <td>8</td> </tr> <tr> <td>3</td> <td>amc rebel sst</td> <td>16.0</td> <td>8</td> </tr> </tbody> </table>";
alert($(x).find("tr").eq(2).text());
Here's a working jsFiddle
If that's not what you want then you really need to tidy up your question and be more specific and helpful. Help us to help you :)

Related

Javascript average of first column from 2 row [closed]

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Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 4 years ago.
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<table>
<tr>
<th>Numbers</th>
<th>Names</th>
</tr>
<tr>
<th>2</th>
<th>Name 1</th>
</tr>
<tr>
<th>26</th>
<th>Name 2</th>
</tr>
</table>
In my code the rows are imported from a database so they will all be from row 2 in the table.
I want to find the average number of all the numbers in the first column from the second row as the first row just has text in it.
Using Object#values, Array#reduce, and querySelectorAll
const dataElements = document.querySelectorAll("table tr:not(:first-child) > th:first-child");
const res = Object.values(dataElements)
.reduce((a,c)=>a+Number(c.innerText),0)/dataElements.length;
console.log(res);
<table> <tr> <th>Numbers</th> <th>Names</th> </tr><tr> <th>2</th> <th>Name 1</th> </tr><tr> <th>26</th> <th>Name 2</th> </tr></table>

Rowspan with Bootstrap-table-fixed-columns extension

I have a problem with the fixed-columns extension of Bootstrap-Table. I'm trying to use a rowspan attribute to have a "3-rows-high" fixed column on the left, followed by a fixed column of 3 rows, but it seems that it doesn't work :
https://jsfiddle.net/Lx87aetc/4/
The goal is to do something with the following architecture :
<table>
<thead>
<tr>
<th></th>
...
</tr>
</thead>
<tbody>
<tr>
<td rowspan="3"></td>
...
</tr>
<tr>...</tr>
<tr>...</tr>
</tbody>
</table>
Does anyone have an idea to solve my problem ?
Thank you,
Ed
The solution simply didn't exist, it was a bug, split into 2 bugs :
Firstly, Bootstrap-Table didn't handle correctly the rowspan / colspan management (some '-' are appended at the end of the rows). Wenzhixin has corrected this: https://github.com/wenzhixin/bootstrap-table/commit/468169cde5bdbf2178a9299d288622fe93777aaa
Secondly, the fixed-column extension didn't handly correctly this either, which lead to a "double" bug (some '-' + buggy fixed columns): I corrected the extension bug : https://github.com/wenzhixin/bootstrap-table-fixed-columns/pull/12
Now it's working : https://jsfiddle.net/wenyi/3v7h5erL/3/
It's solving simple situations like this one :
<table data-toggle="table" data-fixed-columns="true" data-fixed-number="3">
<thead>
<tr>
<th>Title</th>
<th>1</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="2">Momentum</td>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td>1</td>
<td>2</td>
</tr>
</tbody>
</table>

HTML cell DOM get attribute value - sort table.js

I'm trying to make the sorttable.js to read values from a custom tr attribute, which is "sort_value".
<table>
<thead>
<tr>
<th class="sort_string">Name</th>
<th class="sort_int">Age</th>
<th class="sort_int">Date of Birth</th>
</tr>
</thead>
<tbody>
<tr>
<td>Adam</td>
<td>22</td>
<td sort_value="19930403">April 3 1993</td>
</tr>
<tr>
<td>Matt</td>
<td>20</td>
<td sort_value="19950220">Feb 20 1995</td>
</tr>
<tr>
<td>Josh</td>
<td>25</td>
<td sort_value="19900730">July 30 1990</td>
</tr>
<tr>
<td>Kent</td>
<td>27</td>
<td sort_value="19880322">March 22 1988</td>
</tr>
</tbody>
</table>
Here's the jsfiddle: http://jsfiddle.net/zz4mugen/6/
Everything is perfect except the date of birth column. Please take a look at the .js of the jsfiddle. It's on the external resources column.
You're using custom attributes, but the name is not valid. Own attributes have to start with data-. See the official documentation: http://www.w3.org/TR/html5/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes
Below an interesting blog with explanation and examples about sorting different types of values in tables, such as numbers, texts, currencies and dates for different locales.
https://yoast.com/articles/sortable-table/#example

Getting info from an ACTUAL table

I'm trying to learn coding while making "programs" that help me at work. I have been rather successful at making these "programs" that output a mathematical value, but I want to progress to "tables."
I have several "tables" that I use at work. I want to make HTML/Javascript to give me the "answer" from a table by just telling it the 2 "variables" and it telling me what that value is...
I don't even know how to ask this question so I knwo WHAT to learn, So I am here getting advice.
I can make a table, but how do I tell the program to "get" the info I want?
What do I study to be able to make my website return the answer "13" when someone selects "green" from dropdown menu #1 and "a" from dropdown menu #2? Or answer "2" when the user selects "red" and "b"? etc. etc. etc...
<table border="1">
<tr>
<td></td>
<td>a</td>
<td>b</td>
<td>c</td>
<td>d</td>
</tr>
<tr>
<td>red</td>
<td>01</td>
<td>02</td>
<td>03</td>
<td>04</td>
</tr>
<tr>
<td>yellow</td>
<td>05</td>
<td>06</td>
<td>07</td>
<td>08</td>
</tr>
<tr>
<td>blue</td>
<td>09</td>
<td>10</td>
<td>11</td>
<td>12</td>
</tr>
<tr>
<td>green</td>
<td>13</td>
<td>14</td>
<td>15</td>
<td>16</td>
</tr>
</table>

Why is the colspan not working properly in this script? js bug or IE?

This question is related to this question I asked a little while back. The updated code is posted here. This to note is that i am looking to create a HTML table dynamically that looks similar to this:
<table>
<tbody>
<tr>
<td colspan="3" align="right">Header</td>
</tr>
<tr>
<td colspan="3" align="right">Header</td>
</tr>
<tr>
<td colspan="3" align="right">Header</td>
</tr>
<tr>
<td>Col1</td>
<td>Col3</td>
<td>Col4</td>
</tr>
<tr>
<td>Col1</td>
<td>Col3</td>
<td>Col4</td>
</tr>
</tbody>
</table>
I can get this done in markup but when I do it in js the colspan does not seem to work in IE7. Any hep will be greatly appreciated.
http://www.w3schools.com/jsref/prop_tabledata_colspan.asp
The colSpan javascript property has a capital S.

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