AhMyth 9000392778 beta version 8 vuotta sitten
..
examples 9000392778 beta version 8 vuotta sitten
test 9000392778 beta version 8 vuotta sitten
.npmignore 9000392778 beta version 8 vuotta sitten
.travis.yml 9000392778 beta version 8 vuotta sitten
LICENCE 9000392778 beta version 8 vuotta sitten
index.js 9000392778 beta version 8 vuotta sitten
package.json 9000392778 beta version 8 vuotta sitten
readme.markdown 9000392778 beta version 8 vuotta sitten

readme.markdown

MapStream

Refactored out of event-stream

##map (asyncFunction[, options])

Create a through stream from an asyncronous function.

var map = require('map-stream')

map(function (data, callback) {
  //transform data
  // ...
  callback(null, data)
})

Each map MUST call the callback. It may callback with data, with an error or with no arguments,

  • callback() drop this data.
    this makes the map work like filter,
    note:callback(null,null) is not the same, and will emit null

  • callback(null, newData) turn data into newData

  • callback(error) emit an error for this item.

Note: if a callback is not called, map will think that it is still being processed,
every call must be answered or the stream will not know when to end.

Also, if the callback is called more than once, every call but the first will be ignored.

##Options

  • failures - boolean continue mapping even if error occured. On error map-stream will emit failure event. (default: false)