jquery each function loop

Question

I have multiple ul lists like below:

<ul>

    <li><a href="#page/"></a></li>

    <li><a href="#page/"></a></li>

    <li><a href="#page/"></a></li>

    <li><a href="#page/"></a></li>

    <li><a href="#page/"></a></li>

</ul>



<ul>

    <li><a href="#page/"></a></li>

    <li><a href="#page/"></a></li>

    <li><a href="#page/"></a></li>

</ul>



<ul>

    <li><a href="#page/"></a></li>

    <li><a href="#page/"></a></li>

</ul>

I want to count the total number of li and add from 1 to total count the number inside a span and update the href tag of the a as below:

<ul>

    <li><a href="#page/1"><span>1</span></a></li>

    <li><a href="#page/2"><span>2</span></a></li>

    <li><a href="#page/3"><span>3</span></a></li>

    <li><a href="#page/4"><span>4</span></a></li>

    <li><a href="#page/5"><span>5</span></a></li>

</ul>



<ul>

    <li><a href="#page/6"><span>6</span></a></li>

    <li><a href="#page/7"><span>7</span></a></li>

    <li><a href="#page/8"><span>8</span></a></li>

</ul>



<ul>

    <li><a href="#page/9"><span>9</span></a></li>

    <li><a href="#page/10"><span>10</span></a></li>

</ul>

How can I achieve this with jquery?

Answer 1

This should do it:

$('li').each(function (i) {
    i++;
    var link = $(this).find('a');
    link.attr('href', link.attr('href') + i);
    link.append('<span>' + i + '</span>');
});

In the code above we:

Iterate over each list item on the page using jQuery's .each() function
Increment the value of i by 1, so that we can count from 1 instead of from 0
Select and store a reference to the link element within the current list item that we're iterating on using jQuery's .find() method
Update the value of the href attribute using jQuery's .attr() method
And finally append a span tag to the link element, with the value of i as its contents using jQuery's .append() method

jquery each function loop

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