Maud  Rosenbaum

Maud Rosenbaum


Mastering custom validation in JavaScript

I recently had a chance to pair program with a friend who was just breaking into Front-End web development. Considering him, myself, and others I’ve had the chance to work with over time, I’d say it’s a lot more easier to resolve to use a validation library, especially for someone who’s just getting acquainted with developing applications.

Input validation is a paramount control for testing inputs provided by both users and other applications, usually before the inputs enter the workflow of our app. We do this to protect intermediate resources — DBs, data, APIs, networking/computing power, e.t.c.

Why should I go for Custom Validation?

Validation libraries are shipped with a range of precompiled validators that we can directly access from within our apps. Sounds super easy, right? It is. Why then should we have to write custom procedures while we can have a _lib _do the work for us? Well, here are the three basic things that come to mind:

1. Data-Specific tests.

A developer writing a generic validation library will work with the presumption that the validators shipping with the _lib _should suit a wide range of inputs. The preciseness of any given test in the _lib _is therefore not guaranteed. For instance, suppose we are validating a users _Name. _We can use a readily available _text-only _function from a given _lib, _but what if we want to additionally allow users to use periods (for initials) or apostrophes in the provided name?

Being able to write your own tests helps you fine-tune them to suit your specific data.

2. Performance.

Like any Commercial-Off-The-Shelf software, validation _libs _include features that we might end up not using. Consider the _dateISO _or url tests you and additional helper functions that ship with a validation _lib _that you won’t have to use at all. Why use 5/12 tests in a _340kb lib _while you can write a custom 890 bytes custom solution? Generally, the bigger the file sizes are on your app, the longer the app takes to load.

3. Visibility.

There’s no such thing as an opaque library, but, when making use of a minified lib file (recommended), you might as well be working with one. Understanding every column of every line of code in your app gives you the confidence to move things around as you’d like to, while deciding on the most optimum approach. A custom procedure will help you achieve this.

#web-development #regex #coding #javascript #programming

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Laravel 8 Custom Validation Error Messages Example

Laravel 8 custom validation rules and error messages. In this tutorial, i will show you how to add custom validation rules and display custom validation error messages in laravel 8 app.

Laravel 8 Custom Validation Rule & Error Message Example

  • Step 1 - Install Laravel 8 App
  • Step 2 - Connecting App to Database
  • Step 3 - Run Migration Command
  • Step 4 - Add Routes
  • Step 5 - Generate Controller By Command
  • Step 6 - Create the blade view
  • Step 7 - Run Development Server

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Rahul Jangid


What is JavaScript - Stackfindover - Blog

Who invented JavaScript, how it works, as we have given information about Programming language in our previous article ( What is PHP ), but today we will talk about what is JavaScript, why JavaScript is used The Answers to all such questions and much other information about JavaScript, you are going to get here today. Hope this information will work for you.

Who invented JavaScript?

JavaScript language was invented by Brendan Eich in 1995. JavaScript is inspired by Java Programming Language. The first name of JavaScript was Mocha which was named by Marc Andreessen, Marc Andreessen is the founder of Netscape and in the same year Mocha was renamed LiveScript, and later in December 1995, it was renamed JavaScript which is still in trend.

What is JavaScript?

JavaScript is a client-side scripting language used with HTML (Hypertext Markup Language). JavaScript is an Interpreted / Oriented language called JS in programming language JavaScript code can be run on any normal web browser. To run the code of JavaScript, we have to enable JavaScript of Web Browser. But some web browsers already have JavaScript enabled.

Today almost all websites are using it as web technology, mind is that there is maximum scope in JavaScript in the coming time, so if you want to become a programmer, then you can be very beneficial to learn JavaScript.

JavaScript Hello World Program

In JavaScript, ‘document.write‘ is used to represent a string on a browser.

<script type="text/javascript">
	document.write("Hello World!");

How to comment JavaScript code?

  • For single line comment in JavaScript we have to use // (double slashes)
  • For multiple line comments we have to use / * – – * /
<script type="text/javascript">

//single line comment

/* document.write("Hello"); */


Advantages and Disadvantages of JavaScript

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Hire Dedicated JavaScript Developers -Hire JavaScript Developers

It is said that a digital resource a business has must be interactive in nature, so the website or the business app should be interactive. How do you make the app interactive? With the use of JavaScript.

Does your business need an interactive website or app?

Hire Dedicated JavaScript Developer from WebClues Infotech as the developer we offer is highly skilled and expert in what they do. Our developers are collaborative in nature and work with complete transparency with the customers.

The technology used to develop the overall app by the developers from WebClues Infotech is at par with the latest available technology.

Get your business app with JavaScript

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Niraj Kafle


The essential JavaScript concepts that you should understand

As a JavaScript developer of any level, you need to understand its foundational concepts and some of the new ideas that help us developing code. In this article, we are going to review 16 basic concepts. So without further ado, let’s get to it.

#javascript-interview #javascript-development #javascript-fundamental #javascript #javascript-tips

How To Validate Password And Confirm Password Using JQuery

In this post I will show you how to validate password and confirm password using jQuery, Validation is basic and important feature for authentication user so here i will give you demo about password and confirm password validation using jquery.

In jquery we are using keyup event to check whether password and confirm password is match or not.

Read More : How To Validate Password And Confirm Password Using JQuery

#javascript #jquery #validation #validate password and confirm password #validate password in jquery #validate password and confirm password in jquery