Found a total of 10000 related content
jQuery Auto Scroll To Top Of Page
Article Introduction：Use jQuery for Smooth, Automated Scrolling to the Top
This simple jQuery code snippet provides a smooth, automated scroll to the top of your webpage. Why use it? It saves users time scrolling on long pages and adds a visually appealing touch.
[Live
2025-03-11
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1198
Back to Top button with smooth scroll
Article Introduction：The "Back to Top" button on long pages is a simple yet useful navigation feature. This button allows users to quickly return to the top of the page without scrolling excessively. Check out the Codepen demo below: Full text: Back to top button CSS code snippet with smooth scrolling
2025-01-07
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1240
jQuery toUpperCase/toLowerCase Example
Article Introduction：JavaScript code snippets used to convert text to uppercase and lowercase. This is a simple example to demonstrate changes to form input values. See: jQuery titleCaps function
jQuery('form').submit(function() {
jQuery('input#value').val(function(i, val) {
return val.toUpperCase();
return val.toLowerCase();
});
});
jQue
2025-03-11
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622
jQuery convert array to string
Article Introduction：Various ways to convert jQuery arrays into strings and FAQs
Here is a snippet of code that uses jQuery to convert an array to a string:
var blkstr = $.map(value, function(val, index) {
var str = index ":" val;
return str;
}).join(", ");
FAQs
1. How to convert jQuery array to string using .toString() method?
.toStrin
2025-02-28
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1063
jQuery AutoScroll to Div (specific page element)
Article Introduction：jQuery code snippet to autoScroll to a div or any page element with an id. Just change the jQuery selector “mydiv” with whatever element id you wish.
function scroll_to(div){
$('html, body').animate({
scrollTop: $("mydiv").offset().top
2025-03-06
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528
Scroll to Top Using jQuery (Setup time: 2mins)
Article Introduction：Quickly create a website back to top scrolling function (set time: 2 minutes)
This guide will guide you step by step how to set up the Back to Top feature on your website. Just scroll down this page to view the demo.
Download the scrollTo plugin and include it.
Get an image (arrow or similar).
Contains the following HTML code.
Contains the following jQuery/JavaScript code to capture window scrolling and process the display of images.
It's that simple!
HTML
jQuery
This jQuery code displays the image when the user scrolls down, hides the image when scrolling up, and processes click events.
$(document).ready(funct
2025-02-24
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883
6 jQuery Cursor Functions
Article Introduction：Here are some powerful jQuery code snippets for manipulating the mouse cursor! They can be used to set and get text cursor position and selection range in the input and text area fields. Enjoy it!
// jQuery get cursor position function call example
$("input[name='username']").getCursorPosition();
jQuery.fn.getCursorPosition = function(){
if(this.length == 0) return -1;
return $(this).g
2025-03-10
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838
jQuery Back Button (go to previous page)
Article Introduction：jQuery/JavaScript code snippet to simulate a back button based on the users last web page.
$(document).ready(function(){
$('a.back').click(function(){
parent.history.back();
return false;
});
});
Frequently Asked Questions (FAQs) about jQu
2025-03-05
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1122
What is method chaining, and how can it be implemented in PHP?
Article Introduction：Method chain is an object-oriented programming technique that allows developers to call multiple methods in a single line of code by returning the object itself ($this) in each method. 1. It improves the readability and simplicity of the code and reduces redundant code; 2. It is necessary to ensure that each method returns $this when implementing it; 3. It is often used for smooth interfaces, builder patterns and verification processes; 4. It is not recommended that all methods return $this, only methods expected to be used for chain calls; 5. You can choose to return different types of instances to implement more complex chain logic, such as creating and configuring objects through static factory methods.
2025-06-14
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430
What is covariant return type?
Article Introduction：Covariant return types allow subclasses to use more specific return types when rewriting parent class methods, improving code readability and polymorphic support. The core points are as follows: 1. It makes the return type of the subclass method more specific than the parent class (such as Dog instead of Animal); 2. It is available in Java 1.5 and C, but C#, Python, and JavaScript are not directly supported; 3. It is often used in factory methods, smooth interfaces and other scenarios to reduce casting; 4. When using it, it is necessary to ensure that there is an inheritance relationship between the return type and is not suitable for basic types and generic erasing environments.
2025-06-28
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892
jQuery Load New Window
Article Introduction：Open link in new window using jQuery
The following code snippet demonstrates how to use jQuery to open a link in a new window. The code adds events to the anchor tag with the "new-window" class, forcing them to open in a new window.
$(function(){
$('a.new-window').click(function(){
window.open(this.href);
return false;
});
});
Advanced example: Open a link by ID
This code gets the ID of the container div, then gets the hidden url div element, which finally opens in a new window
2025-03-05
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484
jQuery Strip All HTML Tags From a Div
Article Introduction：Use jQuery to remove all HTML tags in div
The following is a simple jQuery code snippet, using jQuery's replace() function to remove all HTML tags in the div (i.e., only the text inside the HTML tag is retained). See also Remove Spaces.
var item_html = $(this).html();
item_html = item_html.replace(/] >/gi, '');
Simpler functions:
jQuery.fn.stripTags = function () {
return this.re
2025-03-06
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988
jQuery Get Index of Current Element
Article Introduction：jQuery code snippet to get index of the current element. Good for those tasks that you use all the time and can simply put into a function for reuse.
$.fn.getIndex = function(){
var $p=$(this).parent().children();
return $p.index(this);
}
2025-03-08
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623
jQuery bring element to front of view
Article Introduction：Quickly use the jQuery/CSS code snippet to place the input box before the other input boxes (using the z-index attribute to position one element before the other). This is mainly a CSS issue, not a jQuery issue (although you can use jQuery to modify CSS), for example:
$('element').css('zIndex', 9999);
Alternatively, absolute positioning will place the element on top:
$('element').css('position', 'absolute');
See also: https://jsfiddle.net/Town/NMGTp/
2025-02-28
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425
jQuery Filter Objects by Data Attribute Value
Article Introduction：This article describes how to use jQuery to filter elements based on data attribute values. The following code snippet selects all div elements with IDs starting with "proto_" and the data attribute "state" value is "open":
var $el = $('div[id^=proto_]').filter(function() {
return ($(this).data("state") == "open");
});
console.lo
2025-02-24
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866
jQuery extract numbers from string
Article Introduction：Quick code snippets of extracting numbers from strings using jQuery regular expression replacement method:
function getId(str) {
return str.replace(/[^0-9.,] /, '');
}
FAQ for extracting numbers from strings using jQuery (FAQ)
How to extract multiple numbers from a string using jQuery?
To extract multiple numbers from a string using jQuery, you can use the match() method and a global regular expression. The match() method searches for content in a string that matches the regular expression and returns a match (as an array). Global
2025-03-01
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846
Get Client IP Using jQuery
Article Introduction：Several snippets of code that use JavaScript/jQuery to get client IP addresses.
Method 1
This method provides longitude/latitude and time zone information. Try it!
$(document).ready(function() {
$.getJSON("https://smart-ip.net/geoip-json?callback=?", function(data) {
alert(data.host);
});
});
Return result:
{
"source": "smar
2025-02-23
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890
