JavaScript Snippets For Better UX and UI

Original Source: https://1stwebdesigner.com/javascript-snippets-for-better-ux-and-ui/

JavaScript can be used to significantly improve the user experience (UX) and user interface (UI) of your website. In this article, we will discuss some JavaScript snippets that you can use to boost the UX and UI of your website.

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Smooth Scrolling

Smooth scrolling is a popular UX feature that makes scrolling through web pages smoother and more fluid. With this feature, instead of abruptly jumping to the next section of the page, the user will be smoothly transitioned to the next section.

To add smooth scrolling to your website, you can use the following JavaScript code:

$(‘a[href*="#"]’).on(‘click’, function(e) {
e.preventDefault()

$(‘html, body’).animate(
{
scrollTop: $($(this).attr(‘href’)).offset().top,
},
500,
‘linear’
)
})

This code will create a smooth scrolling effect whenever the user clicks on a link that includes a # symbol in the href attribute. The code targets all such links and adds a click event listener to them. When the user clicks on a link, the code will prevent the default action of the link (i.e., navigating to a new page) and instead animate the page to scroll smoothly to the section of the page specified by the link’s href attribute.

Dropdown Menus

Dropdown menus are a common UI element that can help to organize content and improve the navigation of your website. With JavaScript, you can create dropdown menus that are easy to use and intuitive for your users.

To create a basic dropdown menu with JavaScript, you can use the following code:

var dropdown = document.querySelector(‘.dropdown’)
var dropdownToggle = dropdown.querySelector(‘.dropdown-toggle’)
var dropdownMenu = dropdown.querySelector(‘.dropdown-menu’)

dropdownToggle.addEventListener(‘click’, function() {
if (dropdownMenu.classList.contains(‘show’)) {
dropdownMenu.classList.remove(‘show’)
} else {
dropdownMenu.classList.add(‘show’)
}
})

This code will create a simple dropdown menu that can be toggled by clicking on a button with the class dropdown-toggle. When the button is clicked, the code will check if the dropdown menu has the class show. If it does, the code will remove the class, hiding the dropdown menu. If it doesn’t, the code will add the class, showing the dropdown menu.

Modal Windows

Modal windows are another popular UI element that can be used to display important information or to prompt the user for input. With JavaScript, you can create modal windows that are responsive, accessible, and easy to use.

To create a basic modal window with JavaScript, you can use the following code:

var modal = document.querySelector(‘.modal’)
var modalToggle = document.querySelector(‘.modal-toggle’)
var modalClose = modal.querySelector(‘.modal-close’)

modalToggle.addEventListener(‘click’, function() {
modal.classList.add(‘show’)
})

modalClose.addEventListener(‘click’, function() {
modal.classList.remove(‘show’)
})

This code will create a modal window that can be toggled by clicking on a button with the class modal-toggle. When the button is clicked, the code will add the class show to the modal window, displaying it on the page. When the close button with the class modal-close is clicked, the code will remove the show class, hiding the modal window.

Sliders

Sliders are a popular UI element that can be used to display images or other types of content in a visually appealing and engaging way. With JavaScript, you can create sliders that are easy to use and customizable to fit your website’s design.

To create a basic slider with JavaScript, you can use the following code:

var slider = document.querySelector(‘.slider’)
var slides = slider.querySelectorAll(‘.slide’)
var prevButton = slider.querySelector(‘.prev’)
var nextButton = slider.querySelector(‘.next’)
var currentSlide = 0

function showSlide(n) {
slides[currentSlide].classList.remove(‘active’)
slides[n].classList.add(‘active’)
currentSlide = n
}

prevButton.addEventListener(‘click’, function() {
var prevSlide = currentSlide – 1
if (prevSlide < 0) {
prevSlide = slides.length – 1
}
showSlide(prevSlide)
})

nextButton.addEventListener(‘click’, function() {
var nextSlide = currentSlide + 1
if (nextSlide >= slides.length) {
nextSlide = 0
}
showSlide(nextSlide)
})

This code will create a slider that can be navigated by clicking on buttons with the classes prev and next. The code uses the showSlide function to show the current slide and hide the previous slide whenever the slider is navigated.

Form Validation

Form validation is an essential UX feature that can help to prevent errors and improve the usability of your website’s forms. With JavaScript, you can create form validation that is responsive and user-friendly.

To create form validation with JavaScript, you can use the following code:

var form = document.querySelector(‘form’)

form.addEventListener(‘submit’, function(e) {
e.preventDefault()
var email = form.querySelector(‘[type="email"]’).value
var password = form.querySelector(‘[type="password"]’).value

if (!email || !password) {
alert(‘Please fill in all fields.’)
} else if (password.length < 8) {
alert(‘Your password must be at least 8 characters long.’)
} else {
alert(‘Form submitted successfully!’)
}
})

This code will validate a form’s email and password fields when the form is submitted. If either field is empty, the code will display an alert message prompting the user to fill in all fields. If the password field is less than 8 characters long, the code will display an alert message prompting the user to enter a password that is at least 8 characters long. If the form passes validation, the code will display an alert message indicating that the form was submitted successfully.

In conclusion, JavaScript is a powerful tool that can be used to enhance the UX and UI of your website. By using these JavaScript snippets, you can create a more engaging and user-friendly experience for your users. However, it is important to use these JavaScript snippets wisely and sparingly to ensure that they do not negatively impact the performance of your website.