Podcast
Questions and Answers
Which item in jQuery allows you to select and manipulate HTML elements?
Which item in jQuery allows you to select and manipulate HTML elements?
- jQuery Selectors (correct)
- DOM Manipulation
- CSS Manipulation
- jQuery Events
Which of the following statements about jQuery Selectors is false?
Which of the following statements about jQuery Selectors is false?
- All jQuery selectors start with a dollar sign and parentheses.
- jQuery selectors do not have any custom selectors. (correct)
- The syntax of jQuery is adaptable to the performing action.
- jQuery Selectors can find elements by their name.
What is the purpose of the dollar sign (") in jQuery syntax?
What is the purpose of the dollar sign (") in jQuery syntax?
- To select elements based on classes only.
- To determine the type of event performed.
- To define or access jQuery. (correct)
- To find and hide HTML elements.
What is the correct syntax to hide an element with the id 'test'?
What is the correct syntax to hide an element with the id 'test'?
Which syntax correctly selects all
elements?
Which syntax correctly selects all
elements?
What syntax can be used to select all
elements of every ?
What syntax can be used to select all
- ?
How can you select all elements that are even?
How can you select all elements that are even?
Which syntax selects elements with an href attribute?
Which syntax selects elements with an href attribute?
How can you select all \ elements of type="button"?
How can you select all \ elements of type="button"?
How can you select all \ elements with a target attribute value equal to "_blank"?
How can you select all \ elements with a target attribute value equal to "_blank"?
What describes the different visitor's actions that a web page can respond to?
What describes the different visitor's actions that a web page can respond to?
What is the basic syntax of jQuery events?
What is the basic syntax of jQuery events?
Mouse events, keyboard events, form events, and document/window events are examples of what?
Mouse events, keyboard events, form events, and document/window events are examples of what?
Which method is used to attach event handlers to elements in jQuery DOM events?
Which method is used to attach event handlers to elements in jQuery DOM events?
What method takes two functions and combines mouseenter() and mouseleave()?
What method takes two functions and combines mouseenter() and mouseleave()?
What method is executed when the form field loses focus?
What method is executed when the form field loses focus?
Which syntax correctly selects all elements with a target attribute value not equal to '_blank'?
Which syntax correctly selects all elements with a target attribute value not equal to '_blank'?
The 'dblclick' event is synonymous with the 'doubleclick' event in jQuery.
The 'dblclick' event is synonymous with the 'doubleclick' event in jQuery.
What jQuery method can be used to attach an event handler to elements?
What jQuery method can be used to attach an event handler to elements?
The event that occurs when an input field gains focus is called _____ .
The event that occurs when an input field gains focus is called _____ .
Match the jQuery events with their respective actions:
Match the jQuery events with their respective actions:
Which of the following is a jQuery event used for handling submission of forms?
Which of the following is a jQuery event used for handling submission of forms?
Mouse events and keyboard events are types of jQuery DOM events.
Mouse events and keyboard events are types of jQuery DOM events.
What does the method 'hover()' combine in jQuery?
What does the method 'hover()' combine in jQuery?
Which jQuery selector syntax will hide all
elements?
Which jQuery selector syntax will hide all
elements?
All jQuery selectors begin with a dollar sign and parentheses.
All jQuery selectors begin with a dollar sign and parentheses.
What jQuery syntax will select the first
of every ?
What jQuery syntax will select the first
- ?
The jQuery method used to hide an element is called __________.
The jQuery method used to hide an element is called __________.
Which of these can be used to select all elements with the class 'intro'?
Which of these can be used to select all elements with the class 'intro'?
Match the following syntax with their function:
Match the following syntax with their function:
The statement '$(this).hide()' hides all elements on the page.
The statement '$(this).hide()' hides all elements on the page.
What is the jQuery selector for even elements?
What is the jQuery selector for even elements?
Flashcards
jQuery Selectors
jQuery Selectors
Part of jQuery used to find and manipulate HTML elements.
jQuery basic syntax
jQuery basic syntax
The standard way of working with jQuery elements ( $,(selector),jQuery action())
$ in jQuery
$ in jQuery
Starts the jQuery command.
Hiding element with ID "test"
Hiding element with ID "test"
Using jQuery to hide the element with id 'test'.
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Hiding elements with class "test"
Hiding elements with class "test"
jQuery command to hide elements with class 'test'.
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Hiding current element
Hiding current element
jQuery method to hide the currently selected HTML element.
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Selecting all elements
Selecting all elements
jQuery command to select all HTML elements.
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Selecting elements with class "intro"
Selecting elements with class "intro"
jQuery method to select elements with class 'intro'.
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jQuery button selector
jQuery button selector
Selecting all button elements using jQuery
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jQuery target attribute selector (not _blank)
jQuery target attribute selector (not _blank)
Selecting all elements with a target attribute NOT equal to _blank
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jQuery Events
jQuery Events
Represent visitor actions on a webpage, marking specific moments of action.
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jQuery event syntax
jQuery event syntax
A simplified format for attaching and handling specific page actions in jQuery
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jQuery DOM events
jQuery DOM events
Events related to elements on the web page
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jQuery mouse events
jQuery mouse events
Handle mouse-related actions
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jQuery event on()
jQuery event on()
Method attaching event handlers to elements
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Selecting First Child
Selecting First Child
A jQuery selector that targets the first child element within another element. For example, 'ul li:first-child' selects the first list item within a unordered list.
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Selecting Even Elements
Selecting Even Elements
A jQuery selector that targets all elements with even indexes (0, 2, 4, etc.). Useful for alternating row colors in tables or similar effects.
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jQuery Attribute Selector
jQuery Attribute Selector
A selector used to find elements based on their attributes and values. For instance, '[href]' selects all elements with an href attribute.
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Hiding a Specific Element
Hiding a Specific Element
A jQuery action that makes a specified element invisible on the web page. For example, $('#myElement').hide();
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Selecting Elements with a Class
Selecting Elements with a Class
A jQuery selector that targets elements with a specific class attribute. For example, '.myClass' selects all elements assigned to the class 'myClass'.
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jQuery on() Method
jQuery on() Method
A versatile method to attach event handlers to elements, making them reactive to user actions.
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jQuery hover() Method
jQuery hover() Method
A combination of mouseenter() and mouseleave() methods, triggering actions when the mouse enters or leaves an element.
jQuery blur() Method
jQuery blur() Method
Triggers when a form field loses focus, meaning the cursor moves away.
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jQuery Selectors
- One of the most crucial parts of the jQuery library
- Used to select and manipulate HTML elements
- Allows for finding specific HTML elements
jQuery Selectors: False Statement
- jQuery Selectors allow finding elements by name, ID, class, attribute types, and attribute values.
- jQuery Selectors are based on existing CSS selectors and offer custom selectors.
- jQuery selector syntax typically has a dollar sign and parentheses.
- jQuery syntax is not always static, but adaptable for element actions.
jQuery Basic Syntax
- Basic syntax includes the dollar sign '$'
- The use of parentheses alongside a selector.
- The 'jQuery action' is a component of the syntax.
- The '&' symbol is not part of jQuery's basic syntax.
jQuery '$' in Syntax
- The '$' symbol is used to define or access jQuery
- It is used to query HTML elements.
- Used to specify actions to be performed on those elements
- Used to find HTML elements
Hiding Elements using jQuery
$("#test").hide()hides an element with the ID "test."$(".test").hide()hides all elements with the class "test."$(this).hide()hides the currently selected HTML element.$("p").hide()hides all<p>elements.
jQuery Selectors: All Elements
$("*")selects all elements.
jQuery Selectors: Specific Elements
$("p.intro")selects all<p>elements with the class "intro."$("ul li:first")selects the first<li>element within each<ul>element.$("ul li:first-child")selects the first<li>of the first<ul>.$("p:first")selects the first<p>element.$("tr:even")selects all even numbered<tr>elements
jQuery Attributes
$("[href]")selects elements with anhrefattribute.
jQuery Events
- jQuery is used to handle events on HTML elements.
jQuery Events: Basic Syntax
$("p").click()is the basic syntax for jQuery events.
jQuery Mouse Events, Keyboard Events, and Form Events
- Mouse, keyboard, form, and document/window events are jQuery capabilities.
jQuery DOM Events
-
click(),dblclick(),mouseenter(),mouseleave(),mousedown(), andmouseup()related events are part of the jQuery DOM events. -
Events like
mousecatch()andmousetrap()fall outside of standard jQuery DOM events.
Attaching Event Handlers in jQuery
- jQuery's
on()method is used to attach event handlers to elements.
jQuery Mouse Interaction Method
hover()handles both mouseenter and mouseleave events for an element.
jQuery Method for Form Field Focus Loss
- The
blur()method in jQuery is activated when a field loses focus.
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