15 Best JavaScript Form Validation Libraries

15 Best JavaScript Form Validation Libraries

15 Javascript Libraries to Build Form Validation So in this post I’ve gathered some useful Javascript library that you can use to set up a form validation for your projects.

Every developer knows how complex and tricky form validation can be. Ideally, users fill in the form with necessary information and finish the job successfully. However, people often make mistakes. This is where form validation comes into play. So in this post I’ve gathered some useful Javascript library that you can use to set up a form validation for your projects.

Form Wizard

Using your form validation can quickly become cumbersome and annoying, however, especially when the number of inputs in the form increase, or the form structure gets more complicated e.g. multi-step forms. Thankfully, this is great validation plugins for jQuery.

Jquery Validation

The jQuery Validation Plugin provides drop-in validation for your existing forms, while making all kinds of customizations to fit your application really easy.

Parsley.js

Like no other form validation library, simply write in English your requirements inside your form HTML tags, Parsley will do the rest! No need to write even a single JavaScript line for simple form validation.

Validator.js

This library validates and sanitizes strings only.

JqBootstrapValidation

A JQuery validation framework for bootstrap forms.

Validate.js

A declarative validation library written javascript.

Jquery Creditcardvalidator

It detects and validates credit card numbers. It’ll tell you the detected credit card type and whether the number length and Luhn checksum are valid for the type of card.

Vuelidate

Simple, lightweight model-based validation for Vue.js.

Bootstrap Validator

The Validator plugin offers automatic form validation configurable via mostly HTML5 standard attributes. It also provides an unobtrusive user experience, because nobody likes a naggy form.

Valid.js

A library for data validation.

Intl Tel Input

A JavaScript plugin for entering and validating international telephone numbers. It adds a flag dropdown to any input, detects the user’s country, displays a relevant placeholder and provides formatting/validation methods.

Vue Form

Form validation for Vue.js 2.2+.

Angular Validator

Angular-Validator is an easy to use, powerful and lightweight AngularJS validation directive.

Formsy React

The main concept is that forms, inputs and validation is done very differently across developers and projects. This extension to React JS aims to be that “sweet spot” between flexibility and reusability.

Hyperform

Hyperform is a complete implementation of the HTML 5 form validation API in Javascript. It replaces or polyfills the browser’s native methods and eases your validation task with custom events and hooks.

Approvejs

ApproveJs doesn’t automatically attach itself to input change events or form submit events. It also doesn’t manipulate the DOM for you by automatically displaying errors. This allows you to automate validation how you want.

Validator

HTML form validation. Perfectly made for all scenerios, lightweight, semantic & easy to use.

Smoke

Smoke form validation and components for Bootstrap.

V8n

The ultimate JavaScript validation library you’ve ever needed. Dead simple fluent API. Customizable. Reusable.

Revalidate

Revalidate is a library for creating and composing together small validation functions to create complex, robust validations. There is no need for awkward configuration rules to define validations. Just use functions.

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Programming a Javascript Simon Game Tutorial

Programming a Javascript Simon Game Tutorial

In this javascript tutorial, I recorded myself live programming an html5 javascript simon game.

In this javascript tutorial, I recorded myself live programming an html5 javascript simon game.

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Understanding Memoization And Dynamic Programming in Javascript

Understanding Memoization And Dynamic Programming in Javascript

In this Javascript tutorial I will explain what memoization is, how to use it, when you should use memoization, how to use memoization, what dynamic programming is, how to use memoization in dynamic programming. Memoization is a big complicated word that you may have never even heard before, but you may be surprised to know that you are most likely already using memoization without even realizing it.

Memoization is a big complicated word that you may have never even heard before, but you may be surprised to know that you are most likely already using memoization without even realizing it. Memoization is just the act of caching values so that they can be calculated quicker in the future. Memoization is really useful in all parts of programming, but where it is most useful is in dynamic programming. In this video I will explain what memoization is, how to use it, and why it is so useful especially in dynamic programming.

🧠 Concepts Covered:

  • What memoization is
  • When you should use memoization
  • How to use memoization
  • What dynamic programming is
  • How to use memoization in dynamic programming

JavaScript Programming Tutorial - Full JavaScript Course for Beginners

JavaScript Programming Tutorial - Full JavaScript Course for Beginners

JavaScript is the programming language of HTML and the Web. JavaScript is easy to learn. This tutorial will teach you JavaScript from basic to advanced. JavaScript Programming Tutorial - Full JavaScript Course for Beginners

Watch this JavaScript tutorial for beginners to learn JavaScript programming from scratch. 👍

⭐️Course Contents⭐️

01 | Introduction

Get an introduction from Bob, as he kicks off the course, sets expectations, and gives you a little guidance for the road ahead.

02 | Setting Up the Development Environment

See how to install Node and Visual Studio Code, and learn why you need each. Watch as Bob writes a first tiny line of code to make sure that the installation is ready.

03 | Basic JavaScript Syntax

Hear about the basics of the JavaScript syntax, including how JavaScript is executed, how to create a properly formed statement, and more.

04 | Variables

Learn what variables are and how to declare, initialize, set, and get values from them.

05 | Data Types

JavaScript works with data types differently than other programming languages do. Learn from Bob as he explains some of the most basic data types and how to determine the type held by a variable.

06 | Type Coercion and Conversion

Sometimes you need to explicitly convert the data type of a value into a different data type. Sometimes JavaScript will do this automatically for you. Bob explains how and why this happens.

07 | Expressions and Operators

Learn how to spot a well-formed expression and how to compose expressions through the combination of operators and operands.

08 | Arrays

Watch as Bob demonstrates how to use arrays, how to add/remove elements of an array, how to access elements of an array using the index, how to get the number of elements in an array, and more.

09 | Function Declaration

Get an introduction to functions, as Bob shows you one way to define a function, how to call the function, how to pass parameters into a function, how to return values from a function, and more.

10 | Function Expressions

Sometimes a function declaration is more than you need. Get details in this lesson, as Bob demonstrates how to use a function expression and how to create an immediately invoked function expression.

11 | Decision Statements

Learn how to add logic to your applications by testing conditions using if / else statements, switch / case statements, and the ternary operator.

12 | Iteration Statements

Watch as Bob introduces the For and While statements, which enable you to loop through lists of values and perform operations on them.

13 | Basics of Scope

Hear an explanation of the notion of the lifetime of variables and their reach into other code blocks, in this discussion of scope.

14 | Returning Functions from Functions

As a building block toward a more sophisticated approach to building JavaScript applications, see how you can return functions from functions.

15 | Object Literals

Objects contain properties and functions that describe attributes of the object and its behavior, respectively. Watch as Bob demonstrates how to create object literals.

16 | Module Pattern and Revealing Module Pattern

Learn how to introduce variables and functions without leaving an unnecessarily large footprint on the global scope.

17 | Closures

Closures allow developers to bind functions to their execution context, including variables, so you can build specialized versions of functions. Learn how closures work and how to create them.

18 | this Keyword

Get the details on the "this" keyword, which causes a lot of confusion for JavaScript developers. Listen as Bob explains what this mysterious object is and how to bend it to your will.

19 | Destructuring

See how to use destructuring, a new feature in JavaScript that allows you to unpack array elements or object properties in a concise syntax.

20 | String Template Literals

Learn about the new string template literal syntax to enable string interpolation, multi-line string formatting, and more.

21 | Regular Expressions

Working with string data, Bob explains how use regular expressions to determine such things as whether a string matches a specific pattern or whether an instance of the pattern exists in a string.

22 | Built-In Natives

Join Bob as he examines native, built-in JavaScript functions that return objects that box the primitive types in order to provide additional helper methods on your values.

23 | Constructor Function Calls with the new Keyword

Learn how constructor functions work, see how to make key distinctions in what they are, and find out why they’re helpful.

24 | Objects and the Prototype Chain

Moving past the absolute beginner matter, listen in as Bob explains how objects work in JavaScript and how you can create an object that is linked to another object.

25 | JavaScript Classes

Bob demonstrates how “syntactic sugar” works on top of the existing functions and prototype chaining to help JavaScript resemble more traditional object-oriented programming languages.

26 | Arrow Functions

The latest version of JavaScript added arrow functions, a shorthand syntax for creating functions. Watch as Bob demonstrates how to create them and shows where they’re useful.

27 | Truthy and Falsy Values

Listen is as Bob circles back to topics that are important (but didn’t easily fit into earlier topics) and looks at the odd way in which JavaScript evaluates certain expressions as truthy and falsy.

28 | null Type

Similar to the undefined primitive type, the null type represents a variable that has no reference to an object when one was expected. Hear an explanation of how and why we should think about nulls.

29 | Date Objects

No discussion of JavaScript would be complete without understanding the Date built-in native function which provides properties and methods for working with dates and times.

30 | String Methods

The built-in native String function provides several very useful methods for manipulating and evaluating strings. Watch Bob demonstrate how to use a few of the most useful ones.

31 | Array Methods

We’ve worked with arrays throughout this course. Now Bob takes a few minutes to show you some of the most useful methods provided by the Array built-in native function.

32 | Error Handling with Try Catch

See how to wrap a try/catch/finally statement around potentially problematic code to anticipate everything that could go wrong with it, and learn other error-handling tips.

33 | Understanding the Document Object Model

Watch Bob examine the web browser environment and how it creates an object graph of nodes that represent elements, their attributes, and text, plus how to properly attach your code to an HTML page.

34 | Working with DOM Nodes

Continuing from the previous video, Bob demonstrates a slightly more compelling example that helps us understand how to manipulate, create, and delete element nodes and attribute nodes.

35 | Course Conclusion

In this final video, Bob briefly adds some closing comments and well wishes. You can also optionally complete a survey to provide insight into how Microsoft can improve this course.

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