# React Password Strength Indicator

A password strength checker with various indicator options using [zxcvbn](https://www.npmjs.com/package/zxcvbn) library.

### Demo App

Try it [live](https://password-strength-demo.netlify.app/)

## Getting Started

These instructions will get you a copy of the project up and running on your local machine for development.

### Prerequisites

react/react-dom is a peer dependency. You should be using this in a React project.

### Installing

Add password strength indicator to your project by executing

```
npm install react-password-strength-variant-indicator
```
### Usage

Here's an example of basic usage:

```js
import React, { Component } from 'react';
import StrengthCheck from "react-password-strength-variant-indicator";

class MyApp extends Component {
  state = {
    inputprops: { inputclass: "form-control", autocomplete: "off", tabIndex: 0 },
    value: ''
  }

  changeCallBackHandler = value => {
   this.setState({ value: value })
  };
  
  render() {
    return (
      <div>
        <StrengthCheck
        changecallback={val => {
          changeCallBackHandler(val);
        }}
        validscore="1"
        inputprops={this.state.inputprops}
        variant="circle"
      />
      </div>
    );
  }
}
```
## User guide

#### Props

|Prop name|Description|Default value|Example values|
|----|----|----|----|
|minLength|The minimum length of password to be typed.|5|`minLength=6`|
|validscore|The minimum valid score the password should have(The score value ranges from 0 to 4 depends on strength and complexity)|2|`validscore=3`|
|strength|The strength of the password based on the score | { 0: "Worst", 1: "Bad",2: "Weak",3: "Good",4: "Strong"}|`strength={0: "Weak",1: "Weak",2: "moderate",3: "Good",4: "Strong"}`|
|className|The className which get added to the component|No|`className=form`|
|inputprops|Object which accepts all the parameters that will be used in input tag|No|`inputprops={{inputclass: 'form-control-input',autocomplete: 'off'tabIndex=-1,}`|
|variant|This gives different types of variant options that can be choosed for strength display|linear-stripped|`variant=line`|
|changecallback|A callback function which gets triggered onChange which gives the input value in the format `{value: typedValue,isValid: boolean,score: score}`.isValid is a boolean which depends on the input length and score.score value ranges from 0 to 4 which depends on password strength and complexity.value gives the inputvalue in the field|No|`changecallback={val => {changeCallBackHandler(val);}}`|

#### variants

|variant name|Example|
|----|----|
|`variant=linear`|<img alt="linear" src="https://github.com/kesav-m/react-password-strength-variant-indicator/blob/master/linear.png?raw=true">|
|`variant=linear-stripped`|<img alt="linear-stripped" src="https://github.com/kesav-m/react-password-strength-variant-indicator/blob/master/linear-stripped.png?raw=true">|
|`variant=discontinuous`|<img alt="discontinuous" src="https://github.com/kesav-m/react-password-strength-variant-indicator/blob/master/discontinuous.png?raw=true">|
|`variant=discontinuous-stripped`|<img alt="discontinuous-stripped" src="https://github.com/kesav-m/react-password-strength-variant-indicator/blob/master/discontinuous-stripped.png?raw=true">|
|`variant=circle`|<img alt="circle" src="https://github.com/kesav-m/react-password-strength-variant-indicator/blob/master/circle.png?raw=true">|
|`variant=line`|<img alt="line" src="https://github.com/kesav-m/react-password-strength-variant-indicator/blob/master/line.png?raw=true">|



## License

This project is licensed under the MIT License - see the [LICENSE.md](https://github.com/kesav-m/react-password-strength-variant-indicator/blob/master/LICENSE) file for details