Challenge your understanding of advanced jQuery selectors with this focused quiz. Explore key concepts such as attribute selectors, filters, and combinators for precise DOM manipulation using jQuery.
Which jQuery selector correctly selects all input elements with a 'type' attribute value equal to 'text'?
Explanation: The selector input[type='text'] targets all input elements where the type attribute is exactly 'text'. The option input.type('text') is not a valid jQuery selector format and would cause an error. The option input#text tries to select an element with id 'text', not a type attribute, so it's incorrect. The option input:text is not a recognized jQuery pseudo-selector for this purpose and does not yield the desired result.
Given a nested list, which selector chooses only the immediate li children of a ul element?
Explanation: The correct selector, ul u003E li, selects only those li elements that are direct or immediate children of the ul. The selector ul li would select all li descendants, including nested ones, rather than only immediate children. ul:li is not valid syntax in jQuery and will not work. The option ul-li is not syntactically valid and does not correspond to any known selector.
How can you select all odd-indexed rows in a table using a jQuery-selector?
Explanation: tr:odd correctly selects all rows with odd indexes, since jQuery uses zero-based indexing, so this targets the 2nd, 4th, 6th, etc., rows. tr[odd] is not a recognized selector in jQuery and will not work. tr:nth-child(odd) is a valid CSS selector but may not behave the same way in jQuery as the :odd filter. tr:even selects rows at even indexes, which is not what is asked.
Which selector finds all disabled buttons within a form?
Explanation: form button:disabled finds all button elements inside a form that are disabled, using the :disabled pseudo-class filter. The option form button[disable] attempts to find elements with a disable attribute, but the correct attribute is 'disabled'. form:button.disabled is invalid as it uses the wrong selector structure. Similarly, form button:disable is not a valid filter and will not yield the correct result.
To select all div elements that do not have the class 'active', which jQuery selector should be used?
Explanation: div:not(.active) correctly selects all divs except those with the class 'active', using the proper negation pseudo-class. The option div.exclude(.active) is not a standard jQuery or CSS selector and does not function as required. div~.active uses the general sibling combinator, which is inappropriate for this scenario. div:without(.active) is also not a valid selector in jQuery and will not work.