# extravalidation > This library provides support for validation in Typescript and Typescript ES6/CommonJS. Latest version **0.0.4-beta.1** (published 2023-01-08) · ISC license · 0 weekly downloads ## Install ```sh npm install extravalidation pnpm add extravalidation yarn add extravalidation bun add extravalidation ``` ## Health **Score 25/100 (F)** — status: abandoned. Positive: has types; esm support; no vulnerabilities. Warnings: low downloads; pre 1.0. Negative: abandoned; low maintenance score. ## Facts | | | |---|---| | Version | 0.0.4-beta.1 | | Published | 2023-01-08 | | First published | 2023-01-07 | | Weekly downloads | 0 | | License | ISC | | TypeScript types | bundled | | Module format | ESM + CommonJS | | Dependencies | 0 | | Unpacked size | 25.3 KB | | Known vulnerabilities | 0 | | Install scripts | no | | GitHub stars | 3 | | Author | Choaib Mouhrach | | Maintainers | choaib | | Keywords | validate, validation, revalidate, check | ## Links - npm: https://www.npmjs.com/package/extravalidation - Repository: https://github.com/PACY2/extravalidation - Homepage: https://github.com/PACY2/extravalidation#readme - Issues: https://github.com/PACY2/extravalidation/issues - npm.io page: https://npm.io/package/extravalidation ## Alternatives - [@regle/core](https://npm.io/package/@regle/core.md) — 47.0K weekly downloads - [typeof-arguments](https://npm.io/package/typeof-arguments.md) — 12.5K weekly downloads - [@lokalise/projects-engine-contracts](https://npm.io/package/@lokalise/projects-engine-contracts.md) — 978 weekly downloads - [@osjwnpm/nam-laboriosam-quibusdam](https://npm.io/package/@osjwnpm/nam-laboriosam-quibusdam.md) — 70 weekly downloads - [@oridune/validator](https://npm.io/package/@oridune/validator.md) — 16 weekly downloads ## Recent versions - 0.0.4-beta.1 (latest) — 2023-01-08 - 0.0.3-beta.1 — 2023-01-07 - 0.0.2-beta.1 — 2023-01-07 - 0.0.1-beta.1 — 2023-01-07 ## README # EXTRAVALIDATION ### extravalidation is a validation library created using typescript and it's compatible with commonjs and ecmascript ## Installation Installation via npm : ```typescript npm i extravalidation ``` Installation via yarn : ```typescript yarn add extravalidation ``` ## Usage ```typescript import { validate, Values, Rules } from "xtravalidation"; let rules: Rules = { firstname: ["required", "min:3", "max:50"], lastname: ["required", "min:3", "max:50"], email: ["required", "email"], password: ["required", "min:8", "confirmed"], }; let values: Values = { firstname: "c", // less than 3 lastname: "camado...", // greater than 50 characters email: "example@.com", // not a valid email password: "passwo", // less than 8 password_confirmation: "password", // different than the actual password }; let [satisfied, errors] = validate(rules, values); /* satisfied => false errors => { firstname: [ 'The field with the key value of firstname should be greater than or equal 3.' ], email: [ 'The field with the key value of email should be a valid Email Address.' ], password: [ 'The field with the key value of password should be greater than or equal 8.' ] } */ ``` ## Validation Rules | Rule | Description | Error message | | :-------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :----------------------------------------------------- | | required | This rule specifies that a field is required and must have a non-empty value | This field is required | | min | This rule specifies a minimum length of characters for a field. For example, if the rule is min:5, then the field must have a length of at least 5 characters . | This field must be at least [min] characters long. | | max | This rule specifies a maximum length of characters for a field. For example, if the rule is max:10, then the field must have a length of at most 10 characters . | This field must be no more than [max] characters long. | | gt | This rule specifies that a field must have a value greater than a certain number. For example, if the rule is gt:5, then the field must have a value greater than 5 | This field must be greater than [gt]. | | lt | This rule specifies that a field must have a value less than a certain number. For example, if the rule is lt:5, then the field must have a value less than 5. | This field must be less than [lt]. | | lte | This rule specifies that a field must have a value less than or equal to a certain number. For example, if the rule is lte:5, then the field must have a value less than or equal to 5. | This field must be less than or equal to [lte]. | | gte | This rule specifies that a field must have a value greater than or equal to a certain number. For example, if the rule is gte:5, then the field must have a value greater than or equal to 5. | This field must be greater than or equal to [gte]. | | number | This rule specifies that a field must contain a valid number. | This field must be a number. | | string | This rule specifies that a field must contain a string. | This field must be a string. | | email | his rule specifies that a field must contain a valid email address. | This field must be a valid email address. | | uppercase | This rule specifies that a field must contain only uppercase characters. | This field must contain only uppercase letters. | | lowercase | This rule specifies that a field must contain only lowercase characters. | This field must contain only lowercase letters. | | confirmed | This rule specifies that a field must contain the same value as "password_confirmation". | password and password confirmation does not match | --- _Source: https://npm.io/package/extravalidation · Machine-readable twin of the npm.io package page. 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