How to find the index of a row in a table using jquery

Question

I\'m trying to find the index of a row in a table. I\'m trying to use the following code, but I seem to get an index of -1.

$(document).ready(function()
{
           


        

Answer 1

Try:

var index = $("table tr").index(this);

The documentation for index() says:

Searches every matched element for the object and returns the index of the element, if found, starting with zero. If a jQuery object is passed, only the first element is checked.

You need to call the index() on a collection of elements, not the parent

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