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Category: Javascript

Top 9 Most Popular Javascript Frameworks To Use in 2023

Dec 08th, 2022 Javascript

Hello everybody, and welcome to Invezza's blog. There are over a hundred of JavaScript frameworks today but do all of them deserve more attention? We can't tell which technology will rule the software development industry five years from now, but we can assume which ones will continue to be the top JavaScript frameworks in the...

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Show or Hide Password Using Javascript

Jan 31st, 2014 Javascript

JavaScript is a powerful programming language that allows web developers to create dynamic and interactive web pages. One of the many useful features of JavaScript is the ability to toggle the visibility of a password field on a webpage. In this post, we will take a closer look at a JavaScript function that can be...

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Radio button validation in javascript

Apr 25th, 2013 Javascript

The JavaScript code in this HTML form is used to validate the selection of a gender from the radio buttons before the form is submitted. <html>   <head>  // Add script tag here   function ValidateForm(form){   ErrorText= "";   if ( ( form.gender[0].checked == false ) && ( form.gender[1].checked == false ) )  ...

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How to Limit Textarea Characters in Javascript

Apr 23rd, 2013 Javascript

Today, we would like to demonstrate how to limit the number of characters in a textarea field in JavaScript. Let's take a look at the code that makes this solution possible: <style> .x{ background:lightblue; font-weight:bold; font-size:20pt; padding:0px 10px; } .y{ font-family:arial black; color:red; } </style> <script> function limitText(v){     len = v.length; var s =...

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JavaScript Redirect (Immediate and Time Delay)

Apr 16th, 2013 Javascript

JavaScript is a powerful scripting language that can be used to perform a wide range of tasks on the client side, including redirecting users to a new page. In this article, we will take a look at how to use JavaScript to redirect users to a new page in two different ways: immediately when the...

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Client-side File Size Limit Check using Javascript

Apr 01st, 2013 Javascript

This code creates an HTML document with a form for uploading a file. The form contains a file input field and a button to trigger the "upload" action. The form is named "upload". The script block defined in the head of the HTML document contains a function named getSize(). When the user selects a file...

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How to Show Image Preview Before Uploading Using JavaScript

Feb 20th, 2013 Javascript

Showing an image before it is uploaded is a useful feature that allows users to preview the image they have selected before uploading it to the server. This feature can be implemented in different ways, but the most common approach is to use JavaScript and the FileReader API. Example :1 <html> <head> <title> show image...

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