{"id":7370,"date":"2021-03-06T10:03:50","date_gmt":"2021-03-06T01:03:50","guid":{"rendered":"https:\/\/pandanote.info\/?p=7370"},"modified":"2022-08-07T13:00:58","modified_gmt":"2022-08-07T04:00:58","slug":"scala-2-13%e3%81%a7%e7%9b%b4%e7%a9%8d%e9%9b%86%e5%90%88%e3%82%92%e6%89%b1%e3%81%86%e3%80%82","status":"publish","type":"post","link":"https:\/\/pandanote.info\/?p=7370","title":{"rendered":"Scala-2.13\u3067\u76f4\u7a4d\u96c6\u5408\u3092\u6271\u3046\u3002"},"content":{"rendered":"<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>GUI\u306e\u3042\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084Web\u306e\u30da\u30fc\u30b8\u306e\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f3\u306e\u4f5c\u6210\u7528\u306b\u4f7f\u3048\u308b\u304b\u3082\u3057\u308c\u306a\u3055\u305d\u3046\u306a\u306e\u3067\u3001\u96c6\u5408\u306e\u76f4\u7a4d\u3092\u8003\u3048\u3001\u305d\u306e\u5143\u306e\u4e00\u89a7\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092Scala-2.13\u3067\u4f5c\u6210\u3057\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<h2>\u76f4\u7a4d\u96c6\u5408\u3068\u306f?<\/h2>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u524d\u306b\u3001\u76f4\u7a4d\u96c6\u5408\u306b\u3064\u3044\u3066\u8abf\u3079\u307e\u3059\u2026<\/p>\n<p><a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E7%9B%B4%E7%A9%8D%E9%9B%86%E5%90%88\">\u76f4\u7a4d\u96c6\u5408 &#8211; Wikipedia<\/a><\/p>\n<p>\u2026\u3064\u307e\u308a\u3001\u305d\u3046\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u639b\u3051\u5408\u308f\u305b\u308b\u96c6\u5408\u306e\u6570\u304c$n$\u3067\u3001\u305d\u308c\u3089\u306e\u96c6\u5408\u306e\u5143\u306e\u6570\u304c\u3059\u3079\u30662\u4ee5\u4e0a\u3067\u3042\u308b\u3068\u3059\u308b\u3068\u3001\u76f4\u7a4d\u96c6\u5408\u306e\u5143\u306e\u6570\u306e\u4e0b\u9650\u306f$2^n$\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>$n$\u304c\u5897\u3048\u308c\u3070\u76f4\u7a4d\u96c6\u5408\u306e\u5143\u306e\u6570\u306f\u4e00\u822c\u7684\u306b\u306f\u6307\u6570\u95a2\u6570\u7684\u306b\u5897\u3048\u307e\u3059\u306e\u3067\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3067\u306f\u3042\u307e\u308a\u76f4\u63a5\u6271\u3044\u305f\u304f\u306a\u3044\u30bf\u30a4\u30d7\u306e\u30c7\u30fc\u30bf\u306b\u306a\u308b\u4e88\u611f\u304c\u3057\u307e\u3059\u3002<\/p>\n<h2>\u554f\u984c\u306e\u8a2d\u5b9a<\/h2>\n<p>\u3053\u3053\u307e\u3067\u306e\u8003\u5bdf\u3092\u8e0f\u307e\u3048\u3001\u554f\u984c\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<blockquote><p>\n$n$\u500b\u306e\u7a7a\u96c6\u5408\u3067\u306a\u3044\u96c6\u5408\u3092\u5165\u529b\u3068\u3057\u3066\u3001\u305d\u306e\u76f4\u7a4d\u96c6\u5408\u306e\u5143\u3092<br \/>\n\u96c6\u54081\u306e\u5143,\u2026,\u96c6\u5408$n$\u306e\u5143<br \/>\n\u306e\u3088\u3046\u306a\u5f62\u5f0f\u30671\u884c\u305a\u3064\u51fa\u529b\u3059\u308bScala-2.13\u3067\u52d5\u304b\u305b\u308b\u7c21\u6f54\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u3051\u3002<br \/>\n\u306a\u304a\u3001\u5165\u529b\u3068\u3057\u3066\u4e0e\u3048\u3089\u308c\u308b\u96c6\u5408\u306e\u500b\u6570\u53ca\u3073\u5404\u96c6\u5408\u306e\u5143\u306e\u500b\u6570\u306f\u4e0d\u5b9a\u3068\u3059\u308b\u3002\n<\/p><\/blockquote>\n<p>n\u304c6\u304f\u3089\u3044\u307e\u3067\u306a\u3089\u591a\u91cd\u30eb\u30fc\u30d7\u3067\u4f55\u3068\u304b\u66f8\u3051\u308b\u3060\u308d\u3046\u2026\u3001\u3068\u3044\u3063\u305f\u3042\u305f\u308a\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u7c21\u7565\u5316\u306e\u9053\u3092\u5c01\u3058\u308b\u554f\u984c\u306e\u8a2d\u5b9a\u3067\u3059(\u81ea\u753b\u81ea\u8cdb)\u3002<\/p>\n<p>\u307e\u305f\u3001\u30ab\u30f3\u30de\u533a\u5207\u308a\u3067\u51fa\u529b\u3055\u305b\u305f\u30c7\u30fc\u30bf\u306f\u305d\u306e\u307e\u307eCSV\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u306a\u308a\u307e\u3059\u306e\u3067\u3001\u5143\u306b\u5bfe\u5fdc\u3059\u308b\u6587\u5b57\u5217\u3092\u9069\u5207\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u5165\u529b\u7528\u306eGUI(\u30d7\u30eb\u30c0\u30a6\u30f3\u30ea\u30b9\u30c8\u3001\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u3001\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u7b49)\u306e\u3042\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084Web\u306e\u30da\u30fc\u30b8\u306e\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f3\u306e\u4e00\u89a7\u3068\u3057\u3066\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u306e\u3067\u3001\u51fa\u529b\u7d50\u679c\u3092\u305d\u3063\u3061\u65b9\u9762\u306e\u7528\u9014\u306b\u5229\u7528\u3059\u308b\u3053\u3068\u3082\u60f3\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u8a66\u884c\u932f\u8aa4<\/h2>\n<p>\u524d\u7bc0\u306e\u3088\u3046\u306b\u554f\u984c\u8a2d\u5b9a\u3092\u3057\u3066\u307f\u307e\u3057\u305f\u304c\u3001\u610f\u5916\u306b\u7c21\u6f54\u306b\u66f8\u304f\u306e\u306f\u96e3\u3057\u3044\u3067\u3059\u3002<\/p>\n<p>2\u500b\u306e\u96c6\u5408\u306e\u76f4\u7a4d\u96c6\u5408\u306a\u3089<br \/>\n<code><br \/>\nscala> val a: Seq[Seq[String]] = Seq(Seq(\"1\",\"2\",\"3\",\"4\"),Seq(\"a\",\"b\",\"c\"))<br \/>\na: Seq[Seq[String]] = List(List(1, 2, 3, 4), List(a, b, c))<\/p>\n<p>scala> (for(aa &lt;- a.head;bb &lt;- a.last) yield \"%s,%s\".format(aa,bb)).foreach(println)<br \/>\n1,a<br \/>\n1,b<br \/>\n1,c<br \/>\n2,a<br \/>\n2,b<br \/>\n2,c<br \/>\n3,a<br \/>\n3,b<br \/>\n3,c<br \/>\n4,a<br \/>\n4,b<br \/>\n4,c<br \/>\n<\/code><br \/>\n\u306e\u3088\u3046\u306a\u611f\u3058\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u66f8\u3051\u305d\u3046\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u30013\u500b\u4ee5\u4e0a\u306e\u96c6\u5408\u306e\u76f4\u7a4d\u96c6\u5408\u306a\u3089foldLeft\u95a2\u6570\u3092\u4f7f\u3063\u3066\u2026<br \/>\n<code><br \/>\nscala> val a: Seq[Seq[String]] = Seq(Seq(\"1\",\"2\",\"3\",\"4\"),Seq(\"a\",\"b\",\"c\"),Seq(\"p\",\"q\",\"r\",\"s\",\"t\"))<\/p>\n<p>scala> (a.foldLeft(Seq(\"\"))((v,aa) => for(vv &lt;- v;aaa &lt;- aa) yield \"%s,%s\".format(vv,aaa))).foreach(l => println(l.substring(1)))<br \/>\n1,a,p<br \/>\n1,a,q<br \/>\n1,a,r<br \/>\n1,a,s<br \/>\n(\u4ee5\u4e0b\u7701\u7565)<br \/>\n<\/code><br \/>\n\u2026\u306e\u3088\u3046\u306b\u7d50\u679c\u3092\u305f\u3081\u3066\u304a\u304f\u5909\u6570\u3092\u5b9a\u7fa9\u3057\u3064\u3064\u51e6\u7406\u3059\u308c\u3070\u826f\u3055\u305d\u3046\u306b\u601d\u3048\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u76f4\u7a4d\u96c6\u5408\u306e\u3082\u3068\u306b\u306a\u308b\u96c6\u5408\u306e\u6570\u304c\u5c11\u3057\u3067\u3082\u5897\u3048\u308b\u3068\u3001\u76f4\u7a4d\u96c6\u5408\u306e\u5143\u306e\u6570\u306f\u6307\u6570\u95a2\u6570\u7684\u306b\u5897\u3048\u308b\u305f\u3081\u3001\u4e0a\u8a18\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u3063\u3066\u4f5c\u3063\u305f\u76f4\u7a4d\u96c6\u5408\u306e\u5143\u3092\u3044\u3063\u305f\u3093PC\u306e\u30e1\u30e2\u30ea\u4e0a\u306b\u3059\u3079\u3066\u305f\u3081\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u304c\u602a\u3057\u304f\u306a\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u5404\u884c\u306e\u5148\u982d\u306b\u306f&#8221;,&#8221;\u304c\u3064\u3044\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u51fa\u529b\u306e\u969b\u306b\u305d\u308c\u30921\u884c\u3054\u3068\u306b\u9664\u53bb\u3057\u3066\u3044\u308b\u306e\u304c\u3069\u3053\u3068\u306a\u304f\u30a4\u30de\u30a4\u30c1\u611f\u3092\u91b8\u3057\u51fa\u3057\u3066\u306f\u3044\u307e\u3059\u304c\u3001\u305d\u3053\u306f\u6c17\u306b\u3057\u306a\u3044\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u3001\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3092\u7d44\u307f\u8fbc\u3093\u3060Scala\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u305d\u308c\u3092JAR\u30d5\u30a1\u30a4\u30eb\u306b\u3057\u305f\u3082\u306e(\u4ee5\u4e0b\u3001\u5358\u306b\u300cJAR\u30d5\u30a1\u30a4\u30eb\u300d\u3068\u66f8\u304d\u307e\u3059\u3002)\u30683\uff5e6\u500b\u306e\u5143\u304b\u3089\u306a\u308b14\u500b\u306e\u96c6\u5408\u3092\u5b9a\u7fa9\u3057\u305fJSON\u30d5\u30a1\u30a4\u30eb(directproducttest2.json)\u3092\u7528\u610f\u3057\u3001\u305d\u306e\u76f4\u7a4d\u96c6\u5408\u306e\u5143\u3092\u8868\u793a\u3055\u305b\u308b\u3079\u304f\u3001JAR\u30d5\u30a1\u30a4\u30eb\u3092\u5b9f\u884c\u3059\u308b\u3068\u2026<br \/>\n<code><br \/>\n>java -jar target\\scala-2.13\\directproduct-assembly-0.0.1-SNAPSHOT.jar -f directproducttest2.json > hoge.txt<br \/>\nException in thread \"main\" java.lang.OutOfMemoryError: Java heap space: failed reallocation of scalar\u3000replaced objects<br \/>\n<\/code><br \/>\n\u3068\u306a\u308a\u3001\u30e1\u30e2\u30ea\u4e0d\u8db3\u3067\u3042\u3048\u306a\u304f\u7d42\u4e86\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002(\u00b4\u30fb\u03c9\u30fb\uff40)<\/p>\n<p>\u4e0a\u8a18\u306e\u5b9f\u884c\u306e\u969b\u306b\u5165\u529b\u3068\u3057\u3066\u4f7f\u7528\u3057\u305fJSON\u30d5\u30a1\u30a4\u30eb(directproducttest2.json)\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u306e\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u2193<br \/>\n<script src=\"https:\/\/gist.github.com\/pandanote-info\/26825ff5ad61e72d841657164146d2c2.js\"><\/script><br \/>\n\u30c7\u30fc\u30bf\u3092\u898b\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b\u5404\u96c6\u5408\u306b\u5bfe\u3057\u3066\u30ad\u30fc\u3092\u4ed8\u4e0e\u3059\u308b\u3053\u3068\u3067KVS\u7684\u306a\u5b9a\u7fa9\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u5404\u96c6\u5408\u3092\u8868\u3059\u914d\u5217\u3092\u5024\u3068\u3057\u3066\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>Google\u5148\u751f\u306b\u805e\u3044\u3066\u307f\u305f\u3002<\/h2>\n<h3>lazy\u306a\u51e6\u7406<\/h3>\n<p>\u76f4\u7a4d\u96c6\u5408\u306e\u5143\u3092\u3059\u3079\u3066\u3044\u3063\u305f\u3093PC\u306e\u30e1\u30e2\u30ea\u4e0a\u306b\u8f09\u305b\u3066\u304b\u3089\u51e6\u7406\u3092\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u51e6\u7406\u80fd\u529b\u306e\u4e0a\u9650\u304cPC\u306b\u642d\u8f09\u3055\u308c\u3066\u3044\u308b\u30e1\u30e2\u30ea\u306e\u91cf\u306b\u4f9d\u5b58\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u51e6\u7406\u80fd\u529b\u306e\u4e0a\u9650\u3092\u5f15\u304d\u4e0a\u3052\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306e\u65b9\u5411\u6027\u3092\u63a2\u308b\u3079\u304f\u3001&#8221;cartesian product scala lazy&#8221;\u3068\u3044\u3046\u691c\u7d22\u8a9e(\u76f4\u7a4d\u306f\u300c\u30c7\u30ab\u30eb\u30c8\u7a4d\u300d\u3068\u3082\u3044\u3044\u307e\u3059\u3002)\u3067Google\u5148\u751f\u306b\u805e\u3044\u3066\u307f\u308b\u3068\u3001\u53c2\u8003\u6587\u732e[<a href=\"#_ref1\">1<\/a>]\u306e\u3088\u3046\u306a\u8a18\u4e8b\u304c\u30b5\u30af\u30c3\u3068\u30d2\u30c3\u30c8\u3057\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u8a18\u4e8b\u306e\u4e2d\u307b\u3069\u306bview\u3092\u4f7f\u3063\u305f\u9045\u5ef6\u5b9f\u884c\u3092\u884c\u3046\u95a2\u6570\u306e\u8a18\u8ff0\u4f8b\u304c\u66f8\u304b\u308c\u3066\u3044\u3066\u3001\u3053\u308c\u3092\u4f7f\u3048\u3070\u89e3\u6c7a\u3067\u304d\u305d\u3046\u3060\u2026 \u3068\u601d\u3044\u3001\u524d\u7bc0\u306efor\u6587\u306e\u4e2d\u306e<br \/>\n<code><br \/>\nfor(vv &lt;- v.view;aaa &lt;- aa)<br \/>\n<\/code><br \/>\n\u306e\u90e8\u5206\u3092\u3001<br \/>\n<code><br \/>\nfor(vv &lt;- v;aaa &lt;- aa)<br \/>\n<\/code><br \/>\n\u306b\u5909\u3048\u3066Scala-2.13\u306eREPL\u3067\u52d5\u4f5c\u306e\u78ba\u8a8d\u3092\u3057\u3066\u307f\u308b\u3068\u2026<br \/>\n<code><br \/>\nscala> (a.foldLeft(Seq(\"\"))((v,aa) => for(vv &lt;- v.view;aaa &lt;- aa) yield \"%s,%s\".format(vv,aaa))).foreach(l => println(l.substring(1)))<br \/>\n                                             ^<br \/>\n       error: type mismatch;<br \/>\n        found   : scala.collection.View[String]<br \/>\n        required: Seq[String]<br \/>\n<\/code><br \/>\n\u3068\u8fd4\u3055\u308c\u3066\u3057\u307e\u3044\u3001\u52d5\u304d\u307e\u305b\u3093\u3002<\/p>\n<h3>Scala\u306e\u4ed5\u69d8\u5909\u66f4\u3078\u306e\u5bfe\u5fdc<\/h3>\n<p>\u5b9f\u306fScala-2.13\u304b\u3089\u524d\u7bc0\u306e\u3088\u3046\u306a\u66f8\u304d\u65b9\u304c\u3067\u304d\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u3088\u3046\u3067\u3001scala.collection.View\u3092import\u3057\u305f\u4e0a\u3067\u3001foldLeft\u95a2\u6570\u306e\u7b2c1\u5f15\u6570\u306eSeq\u3092View\u306b\u5909\u3048\u307e\u3059\u3002<\/p>\n<p>\u3059\u308b\u3068\u2026<br \/>\n<code><br \/>\nscala> import scala.collection.View<br \/>\nimport scala.collection.View<\/p>\n<p>scala> (a.foldLeft(View(\"\"))((v,aa) => for(vv &lt;- v.view;aaa &lt;- aa) yield \"%s,%s\".format(vv,aaa))).foreach(l => println(l.substring(1)))<br \/>\n1,a,p<br \/>\n1,a,q<br \/>\n1,a,r<br \/>\n1,a,s<br \/>\n(\u4ee5\u4e0b\u7701\u7565)<br \/>\n<\/code><br \/>\n\u3068\u306a\u3063\u3066\u3001\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>directproducttest2.json\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306eJAR\u30d5\u30a1\u30a4\u30eb\u3082\u985e\u4f3c\u306e\u4fee\u6b63\u3092\u3059\u308b\u3068(\u6642\u9593\u306f\u304b\u304b\u308a\u307e\u3059\u304c)\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3066\u3001<br \/>\n<code><br \/>\n2021\/03\/04  23:29     5,416,761,910 hoge.txt<br \/>\n<\/code><br \/>\n\u3068\u3044\u3046\u3088\u3046\u306b\u5b9f\u884c\u7d50\u679c\u3092\u51fa\u529b\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u306e\u305f\u3081\u306b\u4f7f\u3063\u305fdynabook\u306e\u30b9\u30c8\u30ec\u30fc\u30b8(SSD)\u30922TB\u306b\u5897\u8a2d\u3057\u3066\u304a\u3044\u3066\u826f\u304b\u3063\u305f\u3068\u601d\u3046\u77ac\u9593\u3067\u3059\u306d\u3002<\/p>\n<p><iframe style=\"width:120px;height:240px;\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" frameborder=\"0\" src=\"https:\/\/rcm-fe.amazon-adsystem.com\/e\/cm?ref=qf_sp_asin_til&#038;t=karen99-22&#038;m=amazon&#038;o=9&#038;p=8&#038;l=as1&#038;IS2=1&#038;detail=1&#038;asins=B07YFFJK2Q&#038;linkId=0200d5d93a540b0da4d96429ed68c60f&#038;bc1=000000&amp;lt1=_top&#038;fc1=333333&#038;lc1=0066c0&#038;bg1=ffffff&#038;f=ifr\"><br \/>\n    <\/iframe><\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>Scala\u306e\u9045\u5ef6\u8a55\u4fa1(lazy)\u306b\u3064\u3044\u3066\u306f\u77e5\u3063\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u4f7f\u3044\u3069\u3053\u308d\u304c\u308f\u304b\u3063\u3066\u3044\u306a\u304b\u3063\u305f(\u305d\u3082\u305d\u3082view\u30e1\u30bd\u30c3\u30c9\u306e\u5b58\u5728\u81ea\u4f53\u304c\u30ce\u30fc\u30de\u30fc\u30af\u3067\u3057\u305f\u3002)\u306e\u3067\u3001\u52c9\u5f37\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305f\u3001Traversable\u3092\u59cb\u3081\u3068\u3057\u3066\u3044\u308d\u3044\u308d\u306a\u3082\u306e\u304cScala-2.13\u304b\u3089deprecated\u306b\u306a\u3063\u3066\u3044\u307e\u3059(Iterable\u3092\u4f7f\u3046\u3068\u826f\u3044\u3088\u3046\u3067\u3059\u3002)\u306e\u3067\u3001<\/p>\n<p>\u300c\u30cd\u30c3\u30c8\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u308b\u30b3\u30fc\u30c9\u4f8b\u3092\u53c2\u8003\u306b\u3059\u308c\u3070\u3044\u3044\u304b\u3089\u3001\u3059\u3050\u89e3\u6c7a\u3067\u304d\u308b\u3088\u306d\u3002\u300d<\/p>\n<p>\u7684\u306a\u8003\u3048\u65b9\u304c\u901a\u7528\u3057\u306a\u304f\u306a\u3063\u3066\u304d\u3066\u3044\u308b\u306e\u3067\u3001\u305d\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u4f8b\u306b\u3064\u3044\u3066\u3082\u6700\u65b0\u306e\u60c5\u5831\u3068\u639b\u3051\u5408\u308f\u305b\u3066\u8a55\u4fa1\u3059\u308b\u7fd2\u6163\u3060\u3051\u306f\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u305f\u3044\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u306f\u4ee5\u4e0a\u3067\u3059\u3002<\/p>\n<h2>References \/ \u53c2\u8003\u6587\u732e<\/h2>\n<ol>\n<li id=\"_ref1\"><a href=\"https:\/\/stackoverflow.com\/questions\/8321906\/lazy-cartesian-product-of-several-seqs-in-scala\/8569263\">Lazy Cartesian product of several Seqs in Scala<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b GUI\u306e\u3042\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084Web\u306e\u30da\u30fc\u30b8\u306e\u30c6\u30b9\u30c8\u30d1\u30bf\u30fc\u30f3\u306e\u4f5c\u6210\u7528\u306b\u4f7f\u3048\u308b\u304b\u3082\u3057\u308c\u306a\u3055\u305d\u3046\u306a\u306e\u3067\u3001\u96c6\u5408\u306e\u76f4\u7a4d\u3092\u8003\u3048\u3001\u305d\u306e\u5143\u306e\u4e00\u89a7\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092Scala-2.13\u3067\u4f5c\u6210\u3057\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002 \u76f4\u7a4d\u96c6\u5408\u3068\u306f? \u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u524d\u306b\u3001\u76f4\u7a4d\u96c6\u5408\u306b\u3064\u3044\u3066\u8abf\u3079\u307e\u3059\u2026 \u76f4\u7a4d\u96c6\u5408 &#8211; Wikipedia \u2026\u3064\u307e\u308a\u3001\u305d\u3046\u3044\u3046\u3053\u3068\u3067\u3059\u3002 \u639b\u3051\u5408\u308f\u305b\u308b\u96c6\u5408\u306e\u6570\u304c$n$\u3067\u3001\u305d\u308c\u3089\u2026 <span class=\"read-more\"><a href=\"https:\/\/pandanote.info\/?p=7370\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":7382,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,3],"tags":[],"class_list":["post-7370","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scala","category-website-2"],"_links":{"self":[{"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/posts\/7370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7370"}],"version-history":[{"count":14,"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/posts\/7370\/revisions"}],"predecessor-version":[{"id":9399,"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/posts\/7370\/revisions\/9399"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=\/wp\/v2\/media\/7382"}],"wp:attachment":[{"href":"https:\/\/pandanote.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pandanote.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}