# js-sha1
A simple SHA1 hash function for JavaScript supports UTF-8 encoding.

## Install
For node.js, you can use this command to install:

    npm install js-sha1

## Usage
If you use node.js, you should require the module first:
```JavaScript
sha1 = require('js-sha1');
```
And you could use like this:
```JavaScript
sha1('Message to hash');
```
## Example
Code
```JavaScript
sha1('');
sha1('The quick brown fox jumps over the lazy dog');
sha1('The quick brown fox jumps over the lazy dog.');
```
Output

    da39a3ee5e6b4b0d3255bfef95601890afd80709
    2fd4e1c67a2d28fced849ee1bb76e7391b93eb12
    408d94384216f890ff7a0c3528e8bed1e0b01621

It also supports UTF-8 encoding:

Code
```JavaScript
sha1('中文');
```
Output

    7be2d2d20c106eee0836c9bc2b939890a78e8fb3

## Tests
You can open `tests/index.html` in browser or use node.js to run test

    node tests/node-test.js

or

    npm test

## Extensions
### jQuery
If you prefer jQuery style, you can add following code to add a jQuery extension.

Code
```JavaScript
jQuery.sha1 = sha1
```
And then you could use like this:
```JavaScript
$.sha1('message');
```
### Prototype
If you prefer prototype style, you can add following code to add a prototype extension.

Code
```JavaScript
String.prototype.sha1 = function() {
  return sha1(this);
};
```
And then you could use like this:
```JavaScript
'message'.sha1();
```
## License
The project is released under the [MIT license](http://www.opensource.org/licenses/MIT).

## Contact
The project's website is located at https://github.com/emn178/js-sha1  
Author: emn178@gmail.com