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var validify = require("validify")

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validify v1.0.8

Validation made easy.


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Validation made easy.

:cloud: Installation

# Using npm
npm install --save validify

# Using yarn
yarn add validify

:clipboard: Example

const validify = require("validify");

console.log(validify("Hello World", String, "The input should be a string.").valid);
// => true

console.log(validify(NaN, Number, "The input is not a valid number.").error);
// => [Error: The input is not a valid number.]

console.log(validify("", /\S+@\S+/, "The email is invalid.").error);
// => null

console.log(validify("", /\S+@\S+/, {
    message: "The email is invalid."
  , code: "INVALID_EMAIL"
// => { [Error: The email is invalid.] code: 'INVALID_EMAIL' }

console.log(validify(42, x => x > 18 && x <= 42, "The input should be greater than 18 and lower or equal than 42.").error);
// => [Error: The input should be greater than 18 and lower or equal than 42.]

:question: Get Help

There are few ways to get help:

  1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.

  2. For bug reports and feature requests, open issues. :bug:

  3. For direct and quick help, you can use Codementor. :rocket:

:memo: Documentation

validify(input, type, errMessage)

Validates the input against the validation method.


  • Anything input: The input value.
  • Function|String|RegExp type: The validation type.
  • Object|Error|String errMessage: The error message interpreted by err.


  • Object An object containing:
  • error (Error|null): The Error object (if any), or null.
  • valid (Boolean): true if the input is valid, false otherwise.

:yum: How to contribute

Have an idea? Found a bug? See how to contribute.

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:dizzy: Where is this library used?

If you are using this library in one of your projects, add it in this list. :sparkles:

:scroll: License

MIT © Ionică Bizău

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