Podcast
Questions and Answers
Which jQuery method is used to attach multiple event handlers to an element?
Which jQuery method is used to attach multiple event handlers to an element?
Which jQuery method returns the direct parent element of the selected element?
Which jQuery method returns the direct parent element of the selected element?
Look at the following selector: $(':disabled'). What does it select?
Look at the following selector: $(':disabled'). What does it select?
Which jQuery method is used to remove selected elements?
Which jQuery method is used to remove selected elements?
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Look at the following selector: $('p#intro'). What does it select?
Look at the following selector: $('p#intro'). What does it select?
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Look at the following selector: $('div p'). What does it select?
Look at the following selector: $('div p'). What does it select?
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Which jQuery method is used to switch between adding/removing one or more classes (for CSS) from selected elements?
Which jQuery method is used to switch between adding/removing one or more classes (for CSS) from selected elements?
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Which jQuery method should be used to deal with name conflicts?
Which jQuery method should be used to deal with name conflicts?
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What is the correct jQuery code for making all div elements 100 pixels high?
What is the correct jQuery code for making all div elements 100 pixels high?
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Which jQuery method is used to set one or more style properties for selected elements?
Which jQuery method is used to set one or more style properties for selected elements?
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Which jQuery method is used to hide selected elements?
Which jQuery method is used to hide selected elements?
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Which jQuery method is used to perform an asynchronous HTTP request?
Which jQuery method is used to perform an asynchronous HTTP request?
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JQuery uses CSS selectors to select elements?
JQuery uses CSS selectors to select elements?
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Which statement is true?
Which statement is true?
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With jQuery, look at the following selector: $('div.intro'). What does it select?
With jQuery, look at the following selector: $('div.intro'). What does it select?
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When using jQuery, what is used to determine when the web page's DOM has been fully loaded by the browser?
When using jQuery, what is used to determine when the web page's DOM has been fully loaded by the browser?
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Select the jQuery code that will set the background color of all li elements to green.
Select the jQuery code that will set the background color of all li elements to green.
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With jQuery, look at the following selector: $('div.intro'). What does it select?
With jQuery, look at the following selector: $('div.intro'). What does it select?
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Look at the following selector: $('p#intro'). What does it select?
Look at the following selector: $('p#intro'). What does it select?
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Study Notes
jQuery Event Handlers
- Use
on()to attach multiple event handlers to an element.
jQuery Parent Elements
-
parent()returns the direct parent element of the selected element.
jQuery Selectors
- The selector
:disabledselects all disabled input elements. - The selector
$("p#intro")selects the p element with id="intro". - The selector
$("div p")selects all p elements inside any div element.
jQuery Element Removal
- Both
detach()andremove()can be used to remove selected elements.
jQuery Class Management
- Use
toggleClass()to switch between adding and removing one or more classes from selected elements.
jQuery Conflict Resolution
- Use
noConflict()to deal with name conflicts in the jQuery library.
jQuery Element Styling
- The code
$("div").height(100)sets all div elements to a height of 100 pixels. - Use
css()to set one or more style properties for selected elements. - Use
hide()to hide selected elements.
jQuery AJAX Requests
- The method
jQuery.ajax()is used to perform asynchronous HTTP requests.
jQuery and CSS Selectors
- jQuery uses CSS selectors to select elements, making it simple to manipulate DOM elements based on their properties.
jQuery Library Usage
- To use jQuery, refer to a hosted jQuery library at Google; it is not built into most browsers by default.
jQuery DOM Ready
- Use
$(document).ready()to determine when the web page's DOM has fully loaded.
jQuery Element Selection by Class
- The selector
$("div.intro")selects all div elements with class="intro". - The selector
$('div.intro')refers to the first div element with class='intro'.
jQuery Element Background Color
- To set the background color of all li elements to green, use
$('li').css('background-color', 'green').
jQuery General Knowledge
- jQuery is an open-source JavaScript library designed for easy HTML document traversal and manipulation, event handling, and asynchronous communication.
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Description
Test your knowledge of jQuery fundamentals, including event handlers, parent element manipulation, and selection techniques. This quiz covers essential methods like on(), parent(), and various selectors to help reinforce your understanding of jQuery. Dive in and see how well you know jQuery!
