Javascript - Previewing PDFs During Upload
The very useful PDF.JS library makes it possible to show a preview of the PDF before uploading to server.
Javascript - Previewing Images During Upload
Showing a preview of the image before being uploaded to server provides a good user experience. You can show a preview image using the URL.createObjectURL method on the selected file.
Typewriter Animation with Pure CSS
This tutorial discusses the concepts behind achieving typewriter effect with CSS, with no Javascript involved.
The Useful <time> HTML Element
The time tag defines date and time in a HTML document. This tag is helpful in making the markup more structured, so that it becomes easier for machines to interpret the page.
Manipulation of HTML Select Element with Javascript
This tutorial explains how you can perform common operations on select element with vanilla Javascript - adding/deleting options or getting/setting the selected options.
Pure Javascript - Replacing an Element
replaceChild and replaceWith methods can be used to replace an element with pure vanilla Javascript.
How to Change URL Parameters with Javascript
This tutorial explains how you can change url parameters - edit, add or delete, using the URL and URLSearchParams objects.
Some Less Known CSS Properties for Form Input Fields
This post briefly discusses some less popular CSS properties for form inputs, for example tab-index, caret-color etc. You can use them to make your form even more effective.
Copying to Clipboard with Javascript
The feature of copying something to the OS clipboard is quite useful for the end user. In a web page it can be implemented with the Selection API.
How to Get URL Parameters with Javascript
The URL and URLSearchParams objects makes it very easy to get parameters in a url.
How to Write a REST API Class for Node.js
While implementing an API with Node.js, it is better to write it as a class, create a module, and import the module in the main Node.js script. This tutorial describes general coding guidelines how you can create such a class.
Javascript Promises - Understanding Chaining and Error Handling
Javascript Promises are quite simple to start with, but confusions arise when Promises are chained. This tutorial focuses on the return values of then() and catch(), which are crucial to understanding the process.
Typing and Deleting Effect with Javascript
Typing effect is a good way to grab user attention. To implement typing effect, you can start by showing the first character initially; after a few milliseconds you can show the first 2 characters; and so on till the whole sentence has been shown.
Dynamically Loading Fonts with Javascript
There are some cases where an application must load a font dynamically rather than setting it through the @font-face CSS rule. Fonts can be downloaded with Javascript using the new CSS Font Loading API.
Setting HTTP Cache Headers with PHP
Through the header() function it is possible to set "Cache-Control" and "ETag" headers in a PHP script.
HTTP Caching for Web Applications - Practical Examples of Cache Headers
HTTP caching can be achieved by sending Cache-Control and ETag headers from the server. This tutorial explains caching through some examples where HTTP headers are exchanged between the browser and the server.
HTTP Caching for Web Applications - Cache Headers Explained
HTTP caching gives a good performance boost to your websites and applications. Caching can be implemented through a combination of Cache-Control and ETag response headers.
How to Get Image Dimensions (Width & Height) with Javascript
Width and height of an image can be found using the "naturalWidth" and "naturalHeight" properties of the image DOM element.
Creating a Full Height Page with Fixed Sidebar and Scrollable Content Area
Webpages with a fixed sidebar and a scrollable content area are quite popular. The page expands to 100% height of the screen. Depending upon the height, both the sidebar and content may have scrollbars.
Javascript - Downloading Files with AJAX and Showing a Progess Bar
Currently most of the web applications show a normal link for the user to download a file. However it is also possible to download a file using a Javascript AJAX request.
Pure Javascript - AJAX File Uploading and Showing Progess Percentage
This tutorial shows how to upload a file using Javascript. It includes everything that is involved - from selecting a file, validating its type and size, sending an AJAX request and showing the upload progress of the file.
Verifying Paypal IDs by Implementing Login with Paypal (using PHP)
While asking a user for his Paypal account, it is better to verify it. This can be done by implementing Login with Paypal, and getting the verified ID via API calls.
Changing Size of Iframe Automatically to Fit Content
You can inform the parent about the changed size of the iframe page by passing messages from the iframe to the parent. This is helpful in preventing scrollbars from coming up.
Tracking Downloads with Google Analytics using Custom Events
Track downloads happening on your website using Google Analytics, and a bit of Javascript. See the analytics data in the Google Analytics dashboard.
Setting HTTP Headers in a Beacon Request
The Beacon API extracts the type of the transmitted data, and sets this as the Content-Type for the HTTP request.
Sending AJAX Data when User Moves Away / Exits from Page
It is sometimes required that your application sends an AJAX to the server before the user moves away from the page (goes to another page, reloads the page, closes the browser etc). The tutorial explains how to do this.
Creating a Page with Sidebar and Main Content Area using HTML & CSS
Popularly used in admin pages, a page with a left sidebar to hold menu options, and a section to hold the main content is one simple design that looks good.
How to Create, Update & Delete Spreadsheet with Google Sheets API using PHP
This tutorial explains how to create, update & delete a Google spreadsheet using Sheets API and PHP
How to Handle CSS in Browser Full-Screen Mode
When an element goes to full-screen , you can change the user interface by changing CSS properties. Tutorial handles all the cases that can possibly come.
How to Update and Delete an Event with Google Calendar API using PHP
Updating and deleting an event with Google Calendar API. Contains a demo.
PDF Viewer Plugin - Embed PDF Documents in Wordpress
PDF Viewer is a Wordpress plugin to embed PDF files in your Wordpress website. You can download it for free.
How to Detect Browser Language with Javascript
Using navigator.language property, you can detect browser language with Javascript.
Google Login with Javascript API
You can implementing "Login with Google" feature using only Javascript, using the Google SDK. This tutorial shows how to get a user to login with Google, and get his profile information.
Implementing 'Read More - Read Less' in Javascript
A good way to reduce a long text to a shorter one is by implementing "Read More - Read Less" functionality with Javascript.
Google Places Reviews - Javascript Plugin
Google Places Reviews is a Javascript / jQuery plugin for displaying Google reviews of a location on a website.
PDF Viewer - Javascript Plugin to Embed PDF Documents
PDF Viewer is a Javascript plugin for embedding PDF files in web pages and applications. The plugin does not require jQuery, and allows any number of PDF files to be embedded in a page.
Google Refresh Tokens : Answers to Some Common Questions
This article contains answers to common questions and confusions related to Google refresh tokens.
3 PHP Scripts that Can Help You to Have Your Own Social Networking Website
Creating a Facebook-like social networking website becomes a lot easier with these PHP scripts.
UI Tip : Replace your JPEG-PNG Logos by SVG ones
A SVG format logo will look far better than a jpeg or png format. SVGs bring high quality at a small file size.
UI Tip : Use Favico.js for Better Notification Management
Favico.js is a Javascript plugin that animates the website's favicon to inform user of new notifications.
UI Tip : Using Animated Favicon to Attract User Attention for an Inactive Browser Tab
While the user is on a different browser tab, you can get his attention by animating the favicon of the website.
How to Get Video Thumbnails with Javascript
It is possible to get the thumbnail of a video at a specified duration using canvas and video html elements.
How to Animate a Favicon in (Most) Browsers with Javascript
Only Firefox allows an animated GIF as favicon. To achieve an animated effect in rest of the browsers, you need to keep changing the favicon at regular intervals with Javascript.
Writing jQuery closest() in Pure Javascript
$.closest() is one of the most useful functions in jQuery. Know how to write this in pure Javascript.
Writing jQuery find() in Pure Javascript
$.find() is one of the most useful functions in jQuery. Know how to write this in pure Javascript.
Visual Illustration of Offset Height, Client Height & Scroll Height
Visually understand the difference between offsetHeight, clientHeight & scrollHeight with a live DOM element.
Auto Grow a Textarea with Javascript
Using the scrollHeight property you can make your textarea auto grow vertically based on its content.
Understanding clientHeight, offsetHeight & scrollHeight
offsetHeight = VISIBLE content & padding + border + scrollbar ● clientHeight = VISIBLE content & padding ● scrollHeight = ENTIRE content & padding (visible or hidden)
How to Add CSS Rules to a Stylesheet with Javascript
You can use insertRule to add new CSS rules to a stylesheet using Javascript.
Animating a Lightbox with CSS & Javascript
Lightboxes are one of the common things implemented in websites, so animating them is a good idea to impress your visitors.