Enhancing Form Validation with Vuejs 2

With vue-validator being prepared for Vuejs 2, what is the most effective method for implementing frontend validation?

UPDATE I've come across a fantastic plugin called Vee Validate

Answer №1

One effective approach I recommend for incorporating front end validation with VueJS is through the utilization of vuelidate.

This tool is not only user-friendly but also robust in functionality. It provides validation based on the model, which means that the data defined in the application is what undergoes validation independent of the templates. Furthermore, it includes various pre-built validators such as for email, minimum and maximum lengths, and required fields, among others.

Answer №2

Utilizing existing Javascript validation libraries like Parsley.js or Validate.js can streamline the validation process. Validate.js, for example, offers a format that can easily be stored in the global store when using Vuex:

var constraints = {
  creditCardNumber: {
    presence: true,
    format: {
      pattern: /^(34|37|4|5[1-5]).*$/,
      message: function(value, attribute, validatorOptions, attributes, globalOptions) {
        return validate.format("^%{num} is not a valid credit card number", {
          num: value
        });
      }
    },
    length: function(value, attributes, attributeName, options, constraints) {
      if (value) {
        // Amex
        if ((/^(34|37).*$/).test(value)) return {is: 15};
        // Visa, Mastercard
        if ((/^(4|5[1-5]).*$/).test(value)) return {is: 16};
      }
      // Unknown card, don't validate length
      return false;
    }
  },
  creditCardZip: function(value, attributes, attributeName, options, constraints) {
    if (!(/^(34|37).*$/).test(attributes.creditCardNumber)) return null;
    return {
      presence: {message: "is required when using AMEX"},
      length: {is: 5}
    };
  }
};

Implementing this can be done as follows:

validate({creditCardNumber: "4"}, constraints);
// => {"creditCardNumber": ["Credit card number is the wrong length (should be 16 characters)"]}

validate({creditCardNumber: "9999999999999999"}, constraints);
// => {"creditCardNumber": ["9999999999999999 is not a valid credit card number"]}

validate({creditCardNumber: "4242424242424242"}, constraints);
// => undefined

validate({creditCardNumber: "340000000000000"}, constraints);
// => {"creditCardZip": ["Credit card zip is required when using AMEX"]}

To integrate these validation functions into your component, consider using @blur=validate(...)

Answer №3

At this time, the selection is limited. Explore vue-awesome for a curated list of the most useful libraries. Currently, there are only 2 options available.

Answer №4

If you happen to be utilizing semantic-ui or considering it, their form validation plugin is truly remarkable.

Check out semantic-ui-form-validation here.

I personally have integrated it with Vuejs and the results have been fantastic.

Answer №5

After trying out various validators, I must say that I was impressed by the simplicity, flexibility, and thorough documentation of this one. It covers a wide range of scenarios for validating forms in Vue Js.

In the past, I relied on the Jquery validator plugin. However, the simple-vue-validator truly shines in its adaptability and its capability to validate forms that are both static and dynamically generated.

For those interested, you can find more information about this validator at https://github.com/semisleep/simple-vue-validator

I've been using it extensively for my SaaS project and it has proven to be extremely reliable so far.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Retrieve Image/png using an Extjs ajax request

Hello, I am currently working on an application that is designed to showcase dynamically generated images stored on a server. The process involves fetching the image, typically in PNG format, using an Ajax Request. The data retrieved appears as follows: ...

Event Listener for Spelling Quiz Buttons: Check Correct and Incorrect Answers

I am currently in the process of developing a spelling quiz for a project website using HTML, CSS, and JavaScript. The idea is to present the user with a word that has two missing letters indicated by underscores. The user then selects the correct answer ...

Utilize Axios in Vue.js to fetch and process data from a REST API endpoint in C#

After successfully creating and deploying an API on Azure, I am trying to display the response in an alert box using javascript (Vue.js). The test method of my API returns the string "working". You can test the API here. This is the code snippet from my A ...

Vue.js failing to trigger code upon received message from socket.io server

I have been working on enabling communication between a Vue.js app and a remote, standalone socket.io server. I have successfully set up the Vue.js app to send messages to the socket.io server (confirmed through console logs on the Node.js instance). Altho ...

Having difficulty adding a Dropdown Menu in a Pop-up Box

I am trying to incorporate a select menu inside of a popover, but every time I attempt to do so, the popover content block remains blank. The popover is associated with a side menu item called "Date History". Below is the code snippet I am using to constr ...

update and rejuvenate session information using Node.js and express-session

Currently, I am working with Node.js in conjunction with express-session. Within my codebase, there is session data containing user information. req.session.user Upon updating the user's information, I update the session with the new data and then r ...

The reactivity of Vuex and Vue does not work as expected when a dictionary is used as a

What is the best approach to make a dictionary reactive as one of my store variables? Unlike an array, dictionaries are not reactive by default. Here's a minimal example I've created: Check out this example on CodeSandbox ...

I am having trouble grasping certain syntax in JavaScript when it comes to using `${method_name}`

I'm having trouble understanding some of the syntax in this code, particularly ${method_name}. I'm not sure what we are achieving by passing the method name within curly braces. global._jsname.prototype.createEELayer = function (ftRule) { if ...

Choose and Send pictures through a Form with JavaScript

Currently, I am exploring different methods for allowing users to submit a form with the images they have selected. My idea is to present users with a set of images from which they can choose multiple options. Potential Solution 1: One approach could invo ...

Error encountered: Unexpected 'o' token in JSON parsing

Although this issue has been discussed numerous times before, I am struggling to identify the error in my code. The error message I am receiving is 'Uncaught SyntaxError: Unexpected token o' Below is the ajax code I am using: $.ajax({ type: ...

Ways to identify when a React child element is overflowing

tl;dr How can I create a component that hides overflow and toggles views with a button? For example, the user can initially see tabs 1, 2, and 3 while tabs 4, 5, and 6 are hidden. Clicking a button will hide tabs 1, 2, and 3, and show tabs 4, 5, and 6 with ...

Is there a way to have a button function as a submit button for a form even when it is located in a separate component within a react application?

I am in the process of creating a user-friendly "My Account" page using react, where users can easily update their account information. I have divided my components into two sections: the navbar and the form itself. However, I am facing an issue with the s ...

Which specific HTML element triggers the initiation of ajax in Jquery?

I have a situation where various HTML elements trigger ajax requests when clicked. My goal is to determine which specific element was clicked inside the ajaxComplete event. Although I attempted to use event.target, it only returns the entire document inst ...

Error in JSON due to the presence of an unexpected token within the

I am facing a challenge with my PHP code, where I take a list of filenames or empty strings and store them in an array. This array is then converted to JSON and saved in a database successfully. However, the problem arises when this array is also stored wi ...

How to align the navbar toggle button and list items to the right in Bootstrap 5

I'm struggling with a simple html page that has a fixed navbar at the top. Everything looks great when viewed in full-screen mode, with centered links. However, when the page size is reduced, it collapses to a toggle button on the left side. What I re ...

Click on the next tab within the ExtJS tab menu

I am looking to deactivate a tab and if it happens to be active, I want the system to automatically switch to the next tab. I attempted myPanel.tab.disable(); if(myPanel.tab.active) myPanel.NextSibling().tab.setActive(); and myPanel.tab.disable(); ...

Ensure the form is properly validated before initiating the submission process on 2checkout

Attempting to prevent the form from being submitted, I implemented the code below. Typically, this method works perfectly fine. However, when integrating 2checkout js (), it does not function as intended. <form onSubmit="validate(); return false;" meth ...

Issue encountered while attempting to utilize setStart and setEnd functions on Range object: Unhandled IndexSizeError: Unable to execute 'setEnd' on 'Range'

Every time I attempt to utilize a range, an error message appears in the console: Uncaught IndexSizeError: Failed to execute 'setEnd' on 'Range': The offset 2 is larger than or equal to the node's length (0). This is the script I ...

Which directories and files are necessary in a Laravel project when using Vue and Vuetify?

Recently, I've been delving into the world of Laravel, Vue, and Vuetify in an attempt to broaden my skills. However, despite my best efforts, I have struggled to find a comprehensive guide that actually works for installing these technologies successf ...

Leverage Jasmine for testing a jQuery plugin

I'm currently utilizing the angular-minicolors library () within an angular controller: angular.element("myelement").minicolors({ position: 'top left', change: function() { //custom code to run upon color change } }) Wh ...