はてなブックマーク

var os = require('os'); console.log(getLocalAddress()); function getLocalAddress() { var ifacesObj = {} ifacesObj.ipv4 = []; ifacesObj.ipv6 = []; var interfaces = os.networkInterfaces(); for (var dev in interfaces) { interfaces[dev].forEach(function(details){ if (!details.internal){ switch(details.family){ case "IPv4": ifacesObj.ipv4.push({name:dev, address:details.address}); break; case "IPv6": i

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var dataSet = [ {"year":2014, "name":"hoge", "group":"A", "count":200}, {"year":2013, "name":"test", "group":"C", "count":110}, {"year":2013, "name":"shimizu", "group":"B", "count":310}, {"year":2014, "name":"suzuki", "group":"A", "count":260}, {"year":2015, "name":"tanaka", "group":"C", "count":180}, {"year":2014, "name":"sato", "group":"B", "count":220}, {"year":2015, "name":"hello", "group":"B"

window.addEventListener("devicemotion", function(evt){ //加速度 var x = evt.acceleration.x; var y = evt.acceleration.y; var z = evt.acceleration.z; //傾き var xg = evt.accelerationIncludingGravity.x; var yg = evt.accelerationIncludingGravity.y; var zg = evt.accelerationIncludingGravity.z; //回転値 var a = evt.rotationRate.alpha; //z方向 var b = evt.rotationRate.beta; //x方向 var g = evt.rotationRate.gamma; //

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console.log( $("#hello").prop("tagName") ); > "INPUT" console.log( $(".hoge").prop("tagName") ); > "INPUT" //先頭しか取れない console.log( $(".hoge").get(0).tagName ); > "INPUT" console.log( $(".hoge").get(1).tagName ); > "SELECT" /* * 下記は、冗長な書き方になっていると指摘いただきました。 * 詳しくはコメント欄を参照ください */ //eachで回す $(".hoge").each(function(){ console.log( $(this).prop("tagName") ); }); > "INPUT" > "SELECT" //mapで集める var tagNa

var tmp = ['test', 'hoge', 'Hello', 'world']; tmp.some(function(v){ return v === 'Hello' }) //-> true tmp.some(function(v){ return v === 'hello' }) //-> false tmp.some(function(v, i, a){ console.log(v) }) ->test ->hoge ->Hello ->world tmp.some(function(v, i, a){ console.log(i) }) ->0 ->1 ->2 ->3 tmp.some(function(v, i, a){ console.log(a) }) ->["test", "hoge", "Hello", "world"] ->["test", "hoge", "

// ネイティブ版 function parseSV(str, delimiter){ if(!delimiter) delimiter = "," return str.split('\n').reduce(function(table,row){ if(!table) return; table.push( row.split(delimiter).map(function(d){ return d.trim() }) //余白削除 ); return table; }, []); } /* ネイティブ版はIE8以下では動かないので * underscore.jsを使う方が良いかも */ function _parseSV(str, delimiter){ if(!delimiter) delimiter = "," return _.reduce(str.split('\n'), f

var url = 'http://www.youtube.com/watch?v=Q16KpquGsIc&gl=JP&hl=ja#comment'; var elm = $('<a>', { href:url } )[0]; console.log(elm.hostname); //->www.youtube.com console.log(elm.pathname); //->/watch console.log(elm.search); //->?v=Q16KpquGsIc&gl=JP&hl=ja console.log(elm.hash); //->#comment

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var array1 = [10, 20, 30, 40, 50]; var target = 30; //要素を削除する array1.some(function(v, i){ if (v==target) array1.splice(i,1); }); console.log(array1) //=> [10, 20, 40, 50]; /* * 連想配列から特定の要素を排除したいときにも便利 */ var array2 = [ {id:1, name:"hoge"}, {id:2, name:"test"}, {id:3, name:"hello"}, {id:4, name:"world"}, {id:5, name:"hoge"}, {id:6, name:"test"}, {id:7, name:"hello"} ]; var targetId = 3; array2.some

var table = d3.select('body').append('table'); //tableタグ追加 var thead = table.append('thead'); //theadタグ追加 var tbody = table.append('tbody'); //tbodyタグ追加 //csv読み込み d3.csv('hoge.csv', function(csv){ var headerKyes = d3.map(csv[0]).keys(); //ヘッダー用にkeyを取得 thead.append('tr') //trタグ追加 .selectAll('th') .data(headerKyes) .enter() .append('th') //thタグ追加 .text(function(key){return key}); tbody.selectAll('tr

var util = require('util'); var net = require("net"); process.on("uncaughtException", function(e) { console.log(e); }); if (process.argv.length != 5) { console.log("引数が正しく入力されていません:" + " <proxy_port> <target_host> <target_port>"); console.log("example:node tcp_proxy.js 3000 www.google.com 80"); process.exit(); } var proxyPort = process.argv[2]; var targetHost = process.argv[3]; var targetPort = pr

var http = require("http"), url = require("url"), path = require("path"), fs = require("fs"), port = process.argv[2] || 8888; http.createServer(function(request, response) { var Response = { "200":function(file, filename){ var extname = path.extname(filename); var header = { "Access-Control-Allow-Origin":"*", "Pragma": "no-cache", "Cache-Control" : "no-cache" } response.writeHead(200, header); res

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<html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> <script src="http://ajax.microsoft.com/ajax/jquery.templates/beta1/jquery.tmpl.min.js"></script> <style> .title{ width:100%; height:240px; line-height:240px; text-align:center; background:#ccc; } </style> <body> <script> //ヒアドキュメント var heredoc = (function () {/* <div class="title"> <h1> <a href="$

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<canvas id="canvas" ></canvas> <input id="uploadFile" name="image" type="file" /> <script> // forked from _shimizu's "input type=file → canvas" http://jsdo.it/_shimizu/5KO3 $("#uploadFile").change(function() { var file = this.files[0]; if (!file.type.match(/^image\/(png|jpeg|gif)$/)) return; var image = new Image(); var reader = new FileReader(); reader.onload = function(evt) { image.onload = func

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