Using the JavaScript validator library for data validation

Looking to utilize the validator in my express project. Is there a way to import only specific packages directly?

For example:

import {isEmail, isEmpty} from 'validator';

Alternatively, importing each on a separate line.

Curious if there is another option besides import validator from 'validator'; as mentioned on the https://www.npmjs.com/package/validator

Answer №1

const isEmailValidator = require('validator').isEmail;
const isEmptyValidator = require('validator').isEmpty;


isEmailValidator('<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c7a5aba687a5aba6e9a4a8aa">[email protected]</a>');

Is this the format you were thinking of? Your original approach is also valid:

import {isEmail, isEmpty} from 'validator';

isEmail('<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="7c1e101d3c1e101d521f1311">[email protected]</a>');

Additional clarification: The validator.js library exports an object with each function as shown here https://github.com/chriso/validator.js/blob/master/src/index.js. You can import all functions using

import validator from 'validator'
or selectively import specific properties using destructuring.

Answer №2

const {isEmail, isEmpty} = require('validator');

Node will continue to import the entire validator module despite this. The code simply instructs Node to load the object returned by the module's export and then extract the isEmail and isEmpty values from it.

Once ES6 modules are fully supported, you may be able to use the standard import syntax. For more information, refer to the node.js documentation on ECMAScript Modules.

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

Using Angular 6 to import GeoJSON into a Leaflet map

I am facing an issue while trying to import a GeoJson file into Leaflet in my Angular app version 6. Although the geojson is being successfully drawn on the leafletmap, I am encountering an error that is preventing me from building my app. Is there anyone ...

What could be causing my newsletter form to malfunction on Amazon CloudFront?

I'm currently working with HTML on an Amazon EC2 instance (Linux free tier). I want to integrate CloudFront into my setup, but I'm encountering issues with my newsletter functionality. Despite not being an expert in AWS, I am struggling to unders ...

The use of custom loaders alongside ts-node allows for more flexibility

Is it possible to utilize ts-node with a custom loader? The documentation only mentions enabling esm compatibility. ts-node --esm my-file.ts I am attempting to implement a custom loader for testing an ESM module, but I prefer not to rely on node for compi ...

Angular, a Self-sufficient Module of Cascading Style Sheets

I have developed a factory that generates HTML content. I want to showcase this generated HTML within a specific section of my application, without its CSS affecting the rest of the site, and vice versa. While using an iframe is one option, I believe there ...

Creating a new function within the moment.js namespace in Typescript

I am attempting to enhance the functionality of the moment.js library by adding a new function that requires a moment() call within its body. Unfortunately, I am struggling to achieve this. Using the latest version of Typescript and moment.js, I have sear ...

Personalizing Material-UI Components using Styled-Components

My attempt to modify the props of a material-ui Grid component using styled-components was not successful. I initially tried: const NavGrid = styled(Grid)` direction: 'row'; ` Unfortunately, this approach did not yield the desired result. T ...

Interactive data table feature in React, transferring selected row data to a modal pop-up

I am currently developing an offline Progressive Web App (PWA) using ReactJS and have integrated the react-data-table-component, which has been very helpful so far. Within the table, I have implemented an onRowClicked function that triggers whenever a row ...

When data is saved to the MongoDB collection, any outdated data is sent to the res() function

Despite everything seemingly running smoothly, the data I receive in res() seems to be lagging by one step. After countless rewrite attempts, I am unable to pinpoint the root cause of the issue. Here is a snippet of the backend code written on express.js, ...

Execute ReactJS function only if query parameters are configured

Provide an Explanation: Within the useEffect, I am retrieving products using the getProducts() function based on the provided data. The data contains search filters that can be updated by the user in real-time. For instance, the data consists of an object ...

How can I make TypeScript properly export function names for closure-compiler?

Here is the TypeScript code I am working with: namespace CompanyName.HtmlTools.Cookie { export function eraseCookie(name:string, path:string) { createCookie(name, "", path, -1); } export function readCookie(name:string) { ...

Having trouble with JQuery click function not executing on initial click?

As I scoured through various resources looking for solutions to issues similar to mine, I stumbled upon numerous helpful insights. However, after going through approximately 15 of them, I hit a roadblock in finding someone who has encountered the exact sam ...

Mastering the art of creating, reading, updating, and deleting data across multiple collections in a nodejs application with Mongoose

Looking to expand my skills as a beginner by practicing CRUD operations using nodejs and mongoDB with mongoose. Currently, we have one collection (employees) in the existing codebase and are looking to add another collection (sensors). You can refer to th ...

Updating pages dynamically using AJAX

There's a glitch I can't seem to shake off. I've successfully implemented AJAX for page loading, but an issue persists. When I navigate to another page after the initial load, the new page contains duplicate tags like <head> and <f ...

Tips for saving HTML data using the Sequelize ORM in a Node.js program:

Currently I am developing a NodeJS application that utilizes NodeJS, Sequelize ORM, and a mysql2 database. During the process, I am in the midst of creating a model called xyz with a field named "text" which will store HTML values collected from a text ed ...

Navigate to a PDF file from an HTML5 application using PhoneGap by accessing an external link

Can anyone help me figure out what I'm doing wrong here? Essentially, I am trying to open a PDF in Google Viewer: <a id="pdflink" href="https://docs.google.com/viewer?url=http://pdpdpd.pdf" target="_blank">Pdf</a> When it opens in the vi ...

Jest came across a surprising token that it wasn't expecting while working with React and TypeScript in conjunction with Jest and React-testing-L

An unexpected token was encountered by Jest while using React and TypeScript along with Jest and React-testing-Library. Error occurred at: E:\Git\node_modules@mui\x-date-pickers\internals\demo\index.js:1 ({"Object." ...

Ways to determine if an object contains an array

Looking at the following data structure: [ 13, { a: [ [ '2988.30000', '0.19000000', '1549294216.653040' ] ] }, { b: [ [ '2988.30000', '0.00000000', '1549294216.653774&a ...

Accessing the parent div in an Ajax success function

I am looking for a solution to hide a parent div when a link is clicked and an ajax call is successfully made. I have tried placing the hide() function within the success part of the ajax call, but it seems to not work: $('.mylink').click(functi ...

Can a complete form be encapsulated within a single AngularJS directive?

While I have come across several instances of individuals utilizing a blend of HTML and directives to craft an AngularJS form (as seen here), my goal is to develop a self-contained widget. This widget would encompass all the necessary HTML for the form w ...

What is the process for calling app.vue methods from an ES6 module?

I am currently in the process of constructing a vuejs application using webpack, vuex, and vue-router. The organization of my project is as follows: [components] BlockingLayer.vue [store] index.js [restapi] index.js App.vue main.js Within App. ...