jQuery Core - Exercises, Practice, Solution
jQuery Core [9 exercises with solution]
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1. Find all h1 elements that are children of a div element and apply a background to them.
Sample Data :
<body> <h1>abc</h1>
<div> <h1>div-1</h1> <h1>div-2</h1> </div> <h1>xyz</h1> </body>
2. Set the background color of a page to red.
Click me to see the solution
3. Hide all the input elements within a form.
Test Data :
<body> <form name='demo_form'> First name: <input type="text" name="fname"><br> Last name: <input type="text" name="lname"><br> <input type="submit" value="Submit"> </form> </body>
4. Find the specific option tag text value of a selected option.
Sample Data :
<body> <select id="myselect"> <option value="1">Option-1</option> <option value="2">Option-2</option> <option value="3">Option-3</option> </select>
</body>
Expected Output :
"Option-2"
5. Check/uncheck a checkbox input or radio button?
Sample Data :
<body> <form action=""> <input type="radio" name="sex" value="male" checked>Male<br> <input type="radio" name="sex" value="female">Female </form> </body>
6. Write jQuery code to append a div element (and all of its contents) dynamically to the body element.
Insert the following within HTML <body> tag :
<div><h1>JQuery Core</h1></div>
7. Write a jQuery Code to get a single element from a selection.
Sample Data :
<body> <ui> <li>Html Tutorial</li> <li>Mongodb Tutorial</li> <li>Python Tutorial</li> </body>
Sample Output : "Mongodb Tutorial"
8. Write jQuery Code to add a <b> tag at the beginning of the list item, containing the index of the list item.
Sample Data :
<body> <ui> <li>Html Tutorial</li> <li>Mongodb Tutorial</li> <li>Python Tutorial</li> </body>
Sample Output:
- 0: Html Tutorial
- 1: Mongodb Tutorial
- 2: Python Tutorial
9. Write jQuery Code to change the hyperlink and the text of a existing link.
Sample Data :
<a href="www.w3resource.com/sqlite/" id='tut'>SQLite Tutorial</a>
Change the hyperlink to -> www.w3resource.com/mysql/mysql-tutorials.php
text -> MySQL Tutorial
More to Come !
Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.
Live Demo:
See the Pen common-jquery-core-exercise by w3resource (@w3resource) on CodePen.
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https://w3resource.com/jquery-exercises/jquery-core-exercises.php
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