Introduction jQuery provides a range of manipulation methods that allow developers to dynamically modify the content and structure of HTML elements on a web page. These methods are convenient and efficient, making it easier to update and manipulate elements using JavaScript.
1. .html() Method
Description: The .html() method is used to get or set the HTML content of an element.
Code Example:
javascript// Get the HTML content of an element
var htmlContent = $('#myElement').html();
// Set the HTML content of an element
$('#myElement').html('<p>New content</p>');
Explanation: In the code example, the .html() method is used to get the HTML content of an element with the ID "myElement" and store it in the variable htmlContent. It can also be used to set the HTML content of the same element by passing the desired HTML as an argument.
2. .text() Method
Description: The .text() method is used to get or set the text content of an element.
Code Example:
javascript// Get the text content of an element
var textContent = $('#myElement').text();
// Set the text content of an element
$('#myElement').text('New text');
Explanation: In the code example, the .text() method is used to get the text content of an element with the ID "myElement" and store it in the variable textContent. It can also be used to set the text content of the same element by passing the desired text as an argument.
3. .val() Method
Description: The .val() method is used to get or set the value of form elements such as input fields, select boxes, and text areas.
Code Example:
javascript// Get the value of an input field
var inputValue = $('#myInput').val();
// Set the value of an input field
$('#myInput').val('New value');
Explanation: In the code example, the .val() method is used to get the value of an input field with the ID "myInput" and store it in the variable inputValue. It can also be used to set the value of the same input field by passing the desired value as an argument.
4. .addClass() Method
Description: The .addClass() method is used to add one or more CSS classes to selected elements.
Code Example:
javascript// Add a CSS class to an element
$('#myElement').addClass('highlight');
Explanation: In the code example, the .addClass() method is used to add the CSS class "highlight" to an element with the ID "myElement". This can be useful for applying styling or visual effects to selected elements.
5. .removeClass() Method
Description: The .removeClass() method is used to remove one or more CSS classes from selected elements.
Code Example:
javascript// Remove a CSS class from an element
$('#myElement').removeClass('highlight');
Explanation: In the code example, the .removeClass() method is used to remove the CSS class "highlight" from an element with the ID "myElement". This can be used to remove specific styling or visual effects applied to selected elements.
Conclusion jQuery manipulation methods provide a powerful set of tools for dynamically modifying HTML content and applying changes to web page elements. These methods simplify the process of updating and manipulating elements using JavaScript, enhancing the interactivity and responsiveness of web applications.
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