crypto.litcoffee

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crypto.litcoffee
¶

Methods that use the node crypto API

dependencies
```
crypto = require('crypto')
```

@.add_Random_Chars size

String::add_Random_Chars = (size )->
  @ + crypto.randomBytes(size || 10)

@.add_Random_String size

String::add_Random_String = (size )->
  @ + crypto.randomBytes(size || 10).toString('hex').slice(0,size|| 10)

@.add_Random_Letters size

String::add_Random_Letters   = (size )->
  charSet = 'abcdefghijklmnopqrstuvwxyz'
  @ + (charSet[Math.floor(Math.random() * charSet.length)]  for i in [1..size]).join('')

@.add_5_Random_Letters

Adds 5 random letters to @

twin methods: add_5_Letters

String::add_5_Random_Letters = ()->
  @.add_Random_Letters(5)


String::add_5_Letters = String::add_5_Random_Letters

@.add_Random_Numbers size

String::add_Random_Numbers = (size)->
  charSet = '0123456789'
  @ + (charSet[Math.floor(Math.random() * charSet.length)]  for i in [1..size]).join('')

@.checksum [algorithm], [encoding]

Returns a checksum for @

Defaults to md5 algorithm and hex encoding

String::checksum = (algorithm, encoding)->
  crypto.createHash(algorithm || 'md5')
        .update(@.toString(), 'utf8')
        .digest(encoding || 'hex')

¶

@.random_String ()

Returns a random string of size @ made of ascii chars
```
Number::random_String = ->
  "".add_Random_String(@ + 0)
```
¶

@.random_Letters ()

Returns a random string of size @ made of only letters
```
Number::random_Letters = ->
  "".add_Random_Letters(@ + 0)
```