Exercises

The challenge exercises may require the use of the official jQuery documentation at http://api.jquery.com/.

1. Modify the table row striping routine so that it gives no class to the first row, a class of alt to the second row, and a class of alt-2 to the third row. Repeat this pattern for every set of three rows in a section.
2. Create a new selector plugin called :containsExactly() that selects elements with text content that exactly matches what is put inside the parentheses.
3. Use this new :containsExactly()selector to rewrite the filtering code from Listing 9.3.
4. Create a new DOM traversal plugin method called .grandparent() that moves from an element or elements to their grandparent elements in the DOM.
5. Challenge: Using http://jsperf.com/, paste in the content of index.html and compare the performance of finding the closest ancestor table element of <td id="release"> using the following:

• The .closest() method
• The .parents() method, limiting the result to the first table found

6. Challenge...