GitHub - mattetti/filebuffer: filebuffer is a package implementing a few file-like interfaces. The implementation is backed by a byte buffer. The main purpose is to have in-memory file alternative.You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert
Go Walkthrough: io
Go is a programming language built for working with bytes. Whether you have lists of bytes, streams of bytes, or individual bytes, Go makes it easy to process. From these simple primitives we build our abstractions and services. The io package is one of the most fundamental packages within the standard library. It provides a set of interfaces and helpers for working with streams of bytes. This pos
Streamの扱い方
func getImage(url string) (image.Image, error) { resp, err := http.Get(url) if err != nil { return nil, err } defer resp.Body.Close() // 一度[]bytesに変換 data, err := ioutil.ReadAll(resp.Body) if err != nil { return nil, err } // jpeg.Decode()で扱える形に変換 buf := bytes.NewBuffer(data) img, err := jpeg.Decode(buf) if err != nil { return nil, err } return img, nil }
node.jsで行処理 - NullPointer's
追記：今はこちらのライブラリがおすすめ www.npmjs.com node.jsにはテキストを読み込んで行毎に処理できるライブラリがないので、自前で行処理を行う必要がある。 何も考えてないバージョン 何も考えなければ、難しくない。 var fs = require('fs'); var rs = fs.createReadStream("a_big_text_file.txt"); var data = ""; rs.on("data", function(chunk) { data += chunk; }); rs.on("end", function() { var lines = data.split('\n'); lines.forEach(function(line) { console.log(line); }) }); しかし、これはイケてない実装。使い捨てスクリプトで使う
Read a file one line at a time in node.js?
I am trying to read a large file one line at a time. I found a question on Quora that dealt with the subject but I'm missing some connections to make the whole thing fit together. var Lazy=require("lazy"); new Lazy(process.stdin) .lines .forEach( function(line) { console.log(line.toString()); } ); process.stdin.resume(); The bit that I'd like to figure out is how I might read one line at a time fr
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GitHub - jprichardson/node-fs-extra: Node.js: extra methods for the fs object like copy(), remove(), mkdirs()