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0.2.0 • Public • Published

Proven.js npm version license type npm downloads ECMAScript 6 & 5

ES6 Component for validations.

import {isNotEmpty} from "proven";
const wallet = {zip: null};
//it returns {result: true|false, message: "some validation message if false"};
if(isNotEmpty.call(wallet, "zip").result) {
  //do something if the wallet has a zip
} else {
  //do something if the wallet has no zip (null or undefined)

Quality and Compatibility

Build Status Coverage Status Code Climate Dependency Status Dev Dependency Status

Every build and release is automatically tested on the following platforms:

node 0.12.x node 0.11.x node 0.10.x iojs 2.x.x iojs 1.x.x

Sauce Test Status

If your platform is not listed above, you can test your local environment for compatibility by copying and pasting the following commands into your terminal:

npm install proven
cd node_modules/proven
gulp test-local


Copy and paste the following command into your terminal to install Proven:

npm install proven --save

Import / Require

// ES6
import {isEmpty, isAssigned, isNumber} from "proven";
// ES5
var proven = require("proven");
// Require.js
define(["require"] , function (require) {
    var proven = require("proven");

Getting Started

Proven provide a set of functions to execute validations of different kinds on objects. They provide both sync and async interfaces, and you should apply them to objects. See below

Set of functions

  • isNotEmpty.call(object, propertyName[, callback])
  • isAssigned.call(object, propertyName[, callback])
  • isNumber.call(object, propertyName[, callback])

All this functions will return an object, except if a callback is specified, case in which the result object will be returned on the callback using the node style (error, result).

The result object has always a boolean result property and a message property, which will have a string value if result is false.

Note: a falsy validation is not an error, so the result object is always the second parameter on the callback.

How to Contribute

See something that could use improvement? Have a great feature idea? We listen!

You can submit your ideas through our issues system, or make the modifications yourself and submit them to us in the form of a GitHub pull request.

We always aim to be friendly and helpful.

Running Tests

It's easy to run the test suite locally, and highly recommended if you're using Proven.js on a platform we aren't automatically testing for.

npm test


npm i proven

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