Repeat across multiple elements (more than 2) - javascript

I know that I can use ng-repeat-start and ng-repeat-end to repeat two elements, <tr>s for example like this
<table>
<tr ng-repeat-start="item in list">
<td>Some text</td>
</tr>
<tr ng-repeat-end>
<td>More text</td>
</tr>
</table>
but how can I do the same for more than two elements? I want 3 <tr>s to be repeated for each item in list. Does Angular have other directives for this purpose or can I surround my repeated elements somehow, so as to be repeated for each item?
Example
<tr>
<td>Text</td>
</tr>
<tr>
<td>Some text</td>
</tr>
<tr>
<td>More text</td>
</tr>


Try this
<table>
<tr ng-repeat-start="item in list">
<td>{{item}}</td>
</tr>
<tr>
<td>{{item}}</td>
</tr>
<tr ng-repeat-end>
<td>{{item}}</td>
</tr>
</table>
For more reference check above link: https://docs.angularjs.org/api/ng/directive/ngRepeat


Also a more simple way to do this without making this kind of ... weird thing, is the following :
<div ng-repeat="item in list">
<tr>
<td>{{item}}</td>
</tr>
<tr>
<td>{{item}}</td>
</tr>
<tr>
<td>{{item}}</td>
</tr>
</tr>
No need to use start, end .. for this particular use case

Related

Get a specific row from specific table with JavaScript?

Say my dynamic HTML looks something like this:
<table id="DanishCompanies">
<tr><th>Name</th><th>Employees</th><th>Founded</th></tr>
<tr id="19"><td>Company A</td><td>80</td><td>1980</td></tr>
<tr id="17"><td>Company B</td><td>12</td><td>1910</td></tr>
<tr id="26"><td>Company C</td><td>5000</td><td>2015</td></tr>
</table>
<table id="SwedishCompanies">
<tr><th>Name</th><th>Employees</th><th>Founded</th></tr>
<tr id="10"><td>Company D</td><td>500</td><td>1950</td></tr>
<tr id="12"><td>Company E</td><td>900</td><td>1990</td></tr>
<tr id="17"><td>Company F</td><td>90</td><td>2010</td></tr>
</table>
<table id="NorwegianCompanies">
<tr><th>Name</th><th>Employees</th><th>Founded</th></tr>
<tr id="17"><td>Company G</td><td>105</td><td>1970</td></tr>
<tr id="18"><td>Company H</td><td>100</td><td>1980</td></tr>
<tr id="19"><td>Company I</td><td>45</td><td>2000</td></tr>
</table>
Each tr has an ID, but ID only relatively unique to the table, as other tables might have the ID, and the number of rows might vary.
How would I obtain the founding year (column 2) of a Swedish company with an id of 17?
I would imagine you would do it like this but I fail to find the correct code.
var table = document.getElementById("SwedishCompanies");
var row_index = ??? //should return 2
return table[row_index].cells[2].innerHTML;
I can't use getElementById just to get id "17", because I would risk getting Danish or Norwegian's company because the order of these tables is random.

you're just not using the right selector,
#DanishCompanies tr[id="17"]
will get you the tr with id 17 that's a child of DanishCompanies :
const row = document.querySelector('#DanishCompanies tr[id="17"]');
const year = row.cells[2].innerHTML;
console.log(year);
<table id="DanishCompanies">
<tr>
<th>Name</th>
<th>Employees</th>
<th>Founded</th>
</tr>
<tr id="19">
<td>Company A</td>
<td>80</td>
<td>1980</td>
</tr>
<tr id="17">
<td>Company B</td>
<td>12</td>
<td>1910</td>
</tr>
<tr id="26">
<td>Company C</td>
<td>5000</td>
<td>2015</td>
</tr>
</table>
<table id="SwedishCompanies">
<tr>
<th>Name</th>
<th>Employees</th>
<th>Founded</th>
</tr>
<tr id="10">
<td>Company D</td>
<td>500</td>
<td>1950</td>
</tr>
<tr id="12">
<td>Company E</td>
<td>900</td>
<td>1990</td>
</tr>
<tr id="17">
<td>Company F</td>
<td>90</td>
<td>2010</td>
</tr>
</table>
<table id="NorwegianCompanies">
<tr>
<th>Name</th>
<th>Employees</th>
<th>Founded</th>
</tr>
<tr id="17">
<td>Company G</td>
<td>105</td>
<td>1970</td>
</tr>
<tr id="18">
<td>Company H</td>
<td>100</td>
<td>1980</td>
</tr>
<tr id="19">
<td>Company I</td>
<td>45</td>
<td>2000</td>
</tr>
</table>

this way (id with number values complicates the css select syntax)
function getTDval( tableId, rowId, colNum)
{
return document
.querySelector(`table#${tableId} tr[id="${rowId}"]`)
.cells[colNum].textContent
}
console.log( getTDval('SwedishCompanies','17',2) )
<table id="DanishCompanies">
<tr><th>Name</th><th>Employees</th><th>Founded</th></tr>
<tr id="19"><td>Company A</td><td>80</td><td>1980</td></tr>
<tr id="17"><td>Company B</td><td>12</td><td>1910</td></tr>
<tr id="26"><td>Company C</td><td>5000</td><td>2015</td></tr>
</table>
<table id="SwedishCompanies">
<tr><th>Name</th><th>Employees</th><th>Founded</th></tr>
<tr id="10"><td>Company D</td><td>500</td><td>1950</td></tr>
<tr id="12"><td>Company E</td><td>900</td><td>1990</td></tr>
<tr id="17"><td>Company F</td><td>90</td><td>2010</td></tr>
</table>
<table id="NorwegianCompanies">
<tr><th>Name</th><th>Employees</th><th>Founded</th></tr>
<tr id="17"><td>Company G</td><td>105</td><td>1970</td></tr>
<tr id="18"><td>Company H</td><td>100</td><td>1980</td></tr>
<tr id="19"><td>Company I</td><td>45</td><td>2000</td></tr>
</table>

It is invalid HTML to reuse the same id value within a page. You might use private data-... attributes for that.
Apart from that, the following line gets the human readable text of the third child node (third column in this case), which is the year (as a string).
document.querySelector('#DanishCompanies tr[id="17"]')
.children[2].innerText;

If you can't rely on getElmentById that means that you are doing something wrong, an id should be unique in the whole html. I suggest a new naming technique, you can concatenate the parent table id with the current row id. Example:
<table id="NorwegianCompanies">
<tr><th>Name</th><th>Employees</th><th>Founded</th></tr>
<tr id="NorwegianCompanies17"><td>Company G</td><td>105</td><td>1970</td></tr>
<tr id="NorwegianCompanies18"><td>Company H</td><td>100</td><td>1980</td></tr>
<tr id="NorwegianCompanies19"><td>Company I</td><td>45</td><td>2000</td></tr>
</table>
In that way you can simply call
const row = document.getElementById(rowId)

How to remove a pattern of table row elements from a table?

If I have the following table, which I can't manually touch, but can apply javascript to...
<table data="customTable">
<tr>
<td>item 1</td>
</tr>
<tr>
<td height="10"></td>
</tr>
<tr>
<td>item 2</td>
</tr>
<tr>
<td height="10"></td>
</tr>
</table>
...when the DOM loads fully, how can I remove every instance of <tr><td height="10"></td></tr> from the above table via jQuery or raw JavaScript? I don't need that row at all and its causing design issues for me. This is my first time trying to learn how to replace a full pattern of elements.
Hopefully, this is doable via JavaScript?

This should do the trick.
jQuery
$('td[height="10"]').parent().remove();
https://jsfiddle.net/uzv3fn2e/1/
Vanilla JS
Array.from(document.querySelectorAll('td[height="10"]')).forEach(td => td.parentNode.remove());
https://jsfiddle.net/t7y6aqc5/

You can use :has() selector to select tr that has td with specific attribute
$("tr:has(td[height='10'])").remove()
$("tr:has(td[height='10'])").remove()
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table data="customTable">
<tr>
<td>item 1</td>
</tr>
<tr>
<td height="10"></td>
</tr>
<tr>
<td>item 2</td>
</tr>
<tr>
<td height="10"></td>
</tr>
</table>

without using jquery javascript has also remove()
document.querySelectorAll("td").forEach(el => el.getAttribute("height") === "10" && el.parentNode.remove())
<table data="customTable">
<tr>
<td>item 1</td>
</tr>
<tr>
<td height="10"></td>
</tr>
<tr>
<td>item 2</td>
</tr>
<tr>
<td height="10"></td>
</tr>
</table>

Rearrange table rows in hardcoded table

I am unable to edit the HTML directly in a form and would like to move some things around. I created a very simplified version of what is going on below. So for example, if I would like to move the row with class "comments" to just below the row with class "matching" how could I do this on page load?
I tried doing something like:
$('tr.comments').closest('tr').after($('tr.matching').closest('tr'));
Here is the basic code, thank you for your help!! :)
<table>
<tbody>
<tr class="designation">
<td>Some text</td>
</tr>
<tr class="comments">
<td>More text</td>
</tr>
</tbody>
<tbody>
<tr class="levels">
<td>level 1</td>
</tr>
<tr class="amount">
<td>$500</td>
</tr>
</tbody>
<tbody>
<tr class="matching">
<td>donor</td>
</tr>
<tr class="mailing">
<td>yes</td>
</tr>
</tbody>

Try with this $('tr.matching').after($('tr.comments'));.
$('tr.matching').after($('tr.comments'));
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tbody>
<tr class="designation">
<td>Some text</td>
</tr>
<tr class="comments">
<td>More text</td>
</tr>
</tbody>
<tbody>
<tr class="levels">
<td>level 1</td>
</tr>
<tr class="amount">
<td>$500</td>
</tr>
</tbody>
<tbody>
<tr class="matching">
<td>donor</td>
</tr>
<tr class="mailing">
<td>yes</td>
</tr>
</tbody>
</table>

$(".matching").after($(".comments"));

Create multiple td in a single ng-repeat

I have a problem building a table.
at the moment I have code like:
<tr ng-repeat="...">
<td>Some tds before</td>
<td ng-repeat="foo in allFoo()">
{{foo.v1}} ({{foo.v2}})
</td>
<td>Some tds after</td>
</tr>
What I really need is to build two columns in here. Somehow move that inner ng-repeat from the element an set it outside. something like:
<tr ng-repeat="...">
<td>Some tds before</td>
<foobar ng-repeat="foo in allFoo()">
<td>{{foo.v1}}</td>
<td>{{foo.v2}}</td>
</foobar>
<td>Some tds after</td>
</tr>
How do I do this?

Try this..
<tr ng-repeat="...">
<td>Some tds before</td>
<td ng-repeat-start="foo in allFoo()">{{foo.v1}}</td>
<td ng-repeat-end>{{foo.v2}}</td>
<td>Some tds after</td>
</tr>
Read more about ng-repeat-start and ng-repeat-end at https://docs.angularjs.org/api/ng/directive/ngRepeat

Use a <table> within <tr> to build two columns
<tr ng-repeat="...">
<td>Some tds before</td>
<table>
<tr>
<th>Foo V1</th>
<th>Foo v2</th>
</tr>
<tr ng-repeat="foo in allFoo()">
<td>{{ foo.v1 }}</td>
<td>{{ foo.v2 }}</td>
</tr>
</table>
<td>Some tds after</td>
</tr>

Sort HTML table which has children with jquery

I have the following table structure. I want to sort this by drag and dropping. Please note that I want the root pages to have children pages. I have it working with list with hierarchy but this makes styling for legacy browsers impossible.
<table>
<tr data-id="1">
<td>Page name</td>
<td>Other column</td>
</tr>
<tr data-id="2">
<td>Page name</td>
<td>Other column</td>
</tr>
<tr class="children" data-parent="2">
<table>
<tr data-id="3">
<td>Page name</td>
<td>Other column</td>
</tr>
<tr data-id="4">
<td>Page name</td>
<td>Other column</td>
</tr>
</table>
</tr>
</table>

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