{"id":1628,"date":"2021-08-24T23:40:57","date_gmt":"2021-08-24T14:40:57","guid":{"rendered":"https:\/\/k.foolslab.net\/dailyreport\/?p=1628"},"modified":"2021-08-24T23:40:57","modified_gmt":"2021-08-24T14:40:57","slug":"2021-8-24%e7%81%ab","status":"publish","type":"post","link":"https:\/\/k.foolslab.net\/dailyreport\/2021-8-24%e7%81%ab\/","title":{"rendered":"2021\/8\/24(\u706b)"},"content":{"rendered":"\n<p>Dart\u8a00\u8a9e\u3092\u3061\u3087\u3063\u3068\u5b66\u3093\u3060\u3002\u6559\u79d1\u66f8\u306f\u516c\u5f0f\u306e<a href=\"https:\/\/dart.dev\/guides\/language\/language-tour\">language-tour<\/a>\u3002<\/p>\n\n\n\n<p>\u57fa\u672c\u7684\u306a\u578b\u306f<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Int<\/li><li>Double<\/li><li>String<\/li><li>bool<\/li><li>List<\/li><li>Set<\/li><li>Map<\/li><li>Null<\/li><\/ul>\n\n\n\n<p>\u3042\u305f\u308a\u3002\u3042\u3068\u3042\u308b\u306e\u306f\u95a2\u6570\u578b\u3068\u30af\u30e9\u30b9\u578b\u3002enum\u578b\u3082\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u6587\u5b57\u3068\u3044\u3046\u304bUnicode\u306e\u30b3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u8868\u3059Rune\u578b\u3068\u3001\u3042\u3068\u306a\u3093\u304b\u3088\u304f\u308f\u304b\u3089\u306a\u3044Symbol\u578b\u3068\u3044\u3046\u306e\u3082\u3042\u308b\u3063\u307d\u3044\u304c\u3001\u591a\u5206\u305d\u3093\u306a\u306b\u91cd\u8981\u3067\u306f\u306a\u3055\u305d\u3046\u3002<\/p>\n\n\n\n<p>\u578b\u63a8\u8ad6\u306f\u3042\u308b\u304c\u578b\u306f\u304d\u3063\u3061\u308a\u3057\u3066\u3044\u308b\u3002C++\u7551\u3067\u80b2\u3063\u3066JS\u3067\u3046\u3093\u3056\u308a\u3057\u3066\u3044\u308b\u81ea\u5206\u306b\u3068\u3063\u3066\u306f\u5927\u5206\u597d\u611f\u3002if\u306e\u6761\u4ef6\u5f0f\u306e\u4e2d\u3068\u304b\u3067\u52dd\u624b\u306b\u975ebool\u3092bool\u306b\u5909\u63db\u3057\u305f\u308a\u3082\u3057\u306a\u3044\u3089\u3057\u3044\u3002\u3042\u30fc\u5065\u5168\u5065\u5168\u3002\u30ad\u30e3\u30b9\u30c8\u306fas\u6f14\u7b97\u5b50\u3002<\/p>\n\n\n\n<p>\u3061\u3087\u3063\u3068\u9762\u767d\u3044\u70b9\u3068\u3057\u3066\u306f\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3068\u3057\u3066\u666e\u901a\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u4ed6\u306b\u540d\u524d\u4ed8\u304d\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u3042\u308b\u3089\u3057\u3044\u3002C++\u3067\u306f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u8907\u6570\u4f5c\u308d\u3046\u3068\u601d\u3063\u3066\u3068\u308c\u308b\u624b\u6bb5\u3068\u8a00\u3048\u3070\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u3059\u308b\u304f\u3089\u3044\u3060\u3063\u305f\u306e\u3067\u3001\u660e\u793a\u7684\u306b\u540d\u524d\u3064\u3051\u3066\u8907\u6570\u5b9a\u7fa9\u3067\u304d\u308b\u3068\u3044\u3046\u306e\u306f\u30b9\u30de\u30fc\u30c8\u306a\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u3042\u3068\u306f\u95a2\u6570\u306b\u540d\u524d\u4ed8\u304d\u5f15\u6570\u3092\u4f7f\u3048\u308b\u3002\u306a\u304b\u306a\u304b\u3088\u3055\u3052\u3002\u305f\u3060\u3061\u3087\u3063\u3068\u5fae\u5999\u306b\u601d\u3063\u305f\u306e\u304c\u3001\u975e\u5fc5\u9808\u306e\u5f15\u6570\u306e\u5834\u5408<code>func({Int? arg})<\/code>\u3068\u3044\u3046\u66f8\u304d\u65b9\u3067\u3001\u5fc5\u9808\u306e\u5f15\u6570\u306e\u5834\u5408<code>func({required Int arg})<\/code>\u3068\u306a\u308b\u3068\u3053\u308d\u3002required\u3068?\u306f\u3069\u3063\u3061\u304b\u7247\u65b9\u3067\u3044\u3044\u3093\u3058\u3083\uff1f\u3068\u611f\u3058\u305f\u3002\u307e\u3042\u660e\u793a\u7684\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3044\u3044\u306e\u304b\u3082\u3057\u308c\u3093\u304c\u3002<\/p>\n\n\n\n<p>\u4f8b\u5916\u51e6\u7406\u304c\u5c11\u3057\u5909\u308f\u3063\u3066\u3044\u308b\u3002on\u3067\u30ad\u30e3\u30c3\u30c1\u3059\u308b\u30a8\u30e9\u30fc\u3092\u6307\u5b9a\u3057\u3001catch\u3067\u5f15\u6570\u3068\u3057\u3066\u53d7\u3051\u53d6\u308b\u3089\u3057\u3044\u3002\u3069\u3063\u3061\u304b\u7247\u65b9\u66f8\u3051\u3070\u3088\u304f\u3001\u4e21\u65b9\u66f8\u304f\u3053\u3068\u3082\u3067\u304d\u308b\u3002\u591a\u5206<a href=\"https:\/\/dart.dev\/guides\/language\/language-tour#catch\">\u5b9f\u969b\u306e\u30b3\u30fc\u30c9<\/a>\u3092\u898b\u308b\u65b9\u304c\u65e9\u3044\u3002\u3061\u3087\u3063\u3068\u6c17\u6301\u3061\u60aa\u304f\u611f\u3058\u308b\u3002<\/p>\n\n\n\n<p>catch\u7bc0\u304b\u3089\u518d\u30b9\u30ed\u30fc\u3059\u308b\u3068\u304d\u306e\u69cb\u6587\u306fthrow\u3067\u306f\u306a\u304frethrow\u3089\u3057\u3044\u3002\u305d\u3053\u5206\u3051\u308b\u3093\u3060\u3002\u4f8b\u5916\u9001\u51fa\u3068\u4e0a\u6d41\u3078\u306e\u518d\u30b9\u30ed\u30fc\u306f\u6839\u672c\u7684\u306b\u9055\u3046\u3093\u3067\u3059\u3063\u3066\u3044\u3046\u306e\u3092\u306f\u3063\u304d\u308a\u3055\u305b\u308b\u306e\u306f\u3044\u3044\u3053\u3068\u306a\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002\u81ea\u5206\u306f\u6614C++\u3067throw;\u3068\u3044\u3046\u66f8\u304d\u65b9\u3092\u898b\u3066\u30cf\u30de\u3063\u305f\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u306f<code>(){}<\/code>\u306e\u5f62\u3067\u5b9a\u7fa9\u3059\u308b\u3002C++\u307f\u305f\u3044\u306b<code>[](){}<\/code>\u3068\u3044\u3046\u611f\u3058\u3067[]\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u308a\u3001JS\u307f\u305f\u304f<code>()=&gt;{}<\/code>\u3068\u3044\u3046\u611f\u3058\u3067=&gt;\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u308a\u306f\u3057\u306a\u3044\u3002\u305d\u3046\u5927\u3057\u305f\u9055\u3044\u3067\u3082\u306a\u3044\u304c\u3001\u77e5\u3063\u3066\u308b\u8a00\u8a9e\u306e\u4e2d\u3067\u306f\u4e00\u7b49\u30b7\u30f3\u30d7\u30eb\u3060\u3002<\/p>\n\n\n\n<p>if-else-else if,for,while,do-while,break,continue,switch\u3042\u305f\u308a\u306e\u5236\u5fa1\u6587\u306f\u7279\u306b\u5909\u306a\u3068\u3053\u308d\u3082\u306a\u3057\u3002C++\u3068\u5927\u3057\u305f\u9055\u3044\u306f\u306a\u3044\u3002<\/p>\n\n\n\n<p>const\u3068final\u304c\u5206\u3051\u3089\u308c\u3066\u3044\u308b\u3089\u3057\u3044\u3002final\u304c\u521d\u671f\u5316\u306e\u307f\u52d5\u7684\u306a\u5909\u6570\u3067\u3042\u308aconst\u306f\u5b8c\u5168\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u5b9a\u6570\u306a\u306e\u3067\u3001C++\u306b\u306a\u305e\u3089\u3048\u308c\u3070const\u2192final, constexpr\u2192const\u3068\u601d\u3048\u3070\u826f\u3055\u305d\u3046\u3002\u305f\u3060\u3057final\u578b\u306eList\u3084Map,\u30af\u30e9\u30b9\u578b\u306e\u5834\u5408\u3001\u518d\u4ee3\u5165\u306f\u5f53\u7136\u4e0d\u53ef\u80fd\u3060\u304c\u305d\u306e\u8981\u7d20\u3084\u30e1\u30f3\u30d0\u306f\u5909\u66f4\u3067\u304d\u308b\u3002\u3053\u306e\u3078\u3093JS\u306econst\u3068\u540c\u3058\u30ce\u30ea\u3092\u611f\u3058\u308b\u3002<\/p>\n\n\n\n<p>Iterable,yield\u3042\u305f\u308a\u306e\u30b5\u30dd\u30fc\u30c8\u3082\u3042\u308b\u3002\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3001\u30d5\u30a1\u30f3\u30af\u30bf\u3001\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3001\u307e\u3042\u540d\u524d\u306f\u3069\u3046\u3067\u3082\u3044\u3044\u304c\u3001\u305d\u306e\u985e\u306f\u666e\u901a\u306b\u884c\u3051\u305d\u3046\u3060\u3002<\/p>\n\n\n\n<p>\u3042\u3068\u30af\u30e9\u30b9\u578b\u306bcall\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u88c5\u3059\u308b\u3068\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3063\u307d\u304f\u6271\u3048\u308b\u3063\u307d\u3044\u3002\u3053\u306e\u8fba\u306e\u30ce\u30ea\u306fPython\u304f\u3055\u3044\u306a\u3002operator()()\u3092\u5b9f\u88c5\u3059\u308bC++\u3068\u3082\u672c\u8cea\u7684\u306b\u306f\u9055\u308f\u306a\u3044\u304b\u3002<\/p>\n\n\n\n<p>\u62bd\u8c61\u30af\u30e9\u30b9\u578b\u3082\u5f53\u7136\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3002abstract class\u69cb\u6587\u3067\u5b9a\u7fa9\u3067\u304d\u308b\u3089\u3057\u3044\u3002PHP\u306e<code>interface<\/code>\u3068\u304bRust\u306e(\u3042\u308c\u306f\u307e\u305f\u7279\u6b8a\u3060\u3051\u3069)trait\u307f\u305f\u3044\u306b\u300cclass\u3068\u306f\u5168\u304f\u5225\u7269\u3067\u3059\u3088\uff5e\u300d\u307f\u305f\u3044\u306a\u30ce\u30ea\u3068\u306f\u5c11\u3057\u9055\u3046\u65b9\u5411\u6027\u3092\u611f\u3058\u308b\u3002\u3084\u3084C++\u3063\u307d\u3044\uff1f\u3067\u3082extends\u3068implements\u3092\u5206\u3051\u3066\u305f\u308a\u3082\u3059\u308b\u306e\u3067\u3001\u306a\u3093\u304b\u9593\u304f\u3089\u3044\u3092\u3068\u3063\u3066\u3044\u308b\u3088\u3046\u306b\u3082\u898b\u3048\u308b\u3002<\/p>\n\n\n\n<p>\u3068\u3044\u3046\u304babstract class\u3092extend\u3082implement\u3082\u3067\u304d\u308b\u306e\u306f\u306a\u3093\u306a\u3093\u3060\uff1finterface\u306e\u8003\u3048\u65b9\u306a\u3089abstract class\u306eextend\u306f\u8981\u3089\u306a\u3044\u3068\u601d\u3046\u304c\u3001abstract class\u3067\u5b9f\u88c5\u6e08\u307f\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5171\u6709\u3055\u305b\u308b\u3053\u3068\u3082\u51fa\u6765\u308b\u3068\u3044\u3046\u3053\u3068\u304b\u3002<\/p>\n\n\n\n<p>\u7d99\u627f\u3068\u306f\u5225\u306bMixin\u3082\u3042\u308b\u3089\u3057\u3044\u3002\u3084\u3084\u3063\u3053\u3057\u3044\u306a\u3042\u3002\u3068\u3044\u3046\u304b\u8a00\u8a9e\u30ec\u30d9\u30eb\u3067\u3053\u3046\u660e\u793a\u7684\u306bMixin\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u308b\u306e\u3001\u610f\u5916\u3068\u521d\u3081\u3066\u898b\u308b\u304b\u3082\uff1f\u898b\u805e\u304c\u72ed\u3044\u3060\u3051\u304b\u3082\u3060\u304c\u3002Python\u3068\u304bJS\u3068\u304b\u3060\u3068\u4ed6\u306e\u6a5f\u80fd\u3067\u7121\u7406\u3084\u308a\u5b9f\u73fe\u3059\u308b\u611f\u3058\u306b\u306a\u308b\u306e\u3067\u3001\u8a00\u8a9e\u7684\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u305f\u65b9\u304c\u6848\u5916\u5b9f\u969b\u306b\u306f\u3059\u3063\u304d\u308a\u3059\u308b\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u30b8\u30a7\u30cd\u30ea\u30af\u30b9(C++\u3067\u8a00\u3046\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8)\u3082\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3002\u3042\u308b\u7a0b\u5ea6\u578b\u304c\u304c\u3063\u3061\u308a\u3057\u3066\u3044\u308b\u8a00\u8a9e\u3060\u3068\u3082\u306f\u3084\u5e38\u8b58\u304b\u3002\u5272\u3068\u3059\u3063\u304d\u308a\u3057\u305f\u6587\u6cd5\u3067\u66f8\u3051\u308b\u3002<\/p>\n\n\n\n<p>\u5168\u4f53\u3092\u898b\u305f\u611f\u3058\u3068\u3057\u3066\u306f\u3001\u73fe\u4ee3\u7684\u306a\u8a00\u8a9e\u3089\u3057\u304f\u3044\u3044\u611f\u3058\u306b\u5168\u4f53\u306b\u3059\u3063\u304d\u308a\u3057\u305f\u6587\u6cd5\u3068\u30b7\u30b9\u30c6\u30e0\u3060\u3068\u601d\u3046\u304c\u3001\u30af\u30e9\u30b9\u7d99\u627f\u56de\u308a\u306f\u82e5\u5e72\u3084\u3084\u3053\u3057\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u3002Python\u306e\u300c\u3042\u308b\u51e6\u7406\u3092\u66f8\u304f\u65b9\u6cd5\u306f\u4e00\u3064\u3067\u3042\u308b\u3079\u304d\u3060\u300d\u7684\u306a\u8996\u70b9\u304b\u3089\u898b\u308b\u3068\u5fae\u5999\u306b\u6a5f\u80fd\u904e\u591a\u306b\u898b\u3048\u306a\u3044\u3053\u3068\u3082\u306a\u3044\u304c\u3001ruby\u307b\u3069\u3067\u306f\u306a\u3044\u304b\u306a\u3001\u304f\u3089\u3044\u306b\u611f\u3058\u305f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u80ce\u754c\u4e3b\u3092\u8aad\u3093\u3060\u3002\u30ed\u30b7\u30a2\u56fd\u7acb\u611f\u67d3\u75c7\u7814\u7a76\u6240\u7de8\u7d42\u4e86\u3002\u30d5\u30eb\u30fc\u30ec\u30c6\u30a3\u304c\u3069\u3093\u3069\u3093\u53ef\u611b\u3052\u51fa\u3057\u3066\u3044\u304f\u306e\u4f55\uff1f\u30de\u30eb\u30d0\u30b9\u3082\u767b\u5834\u3057\u30662\u9031\u76ee\u3067\u5730\u56e3\u592a\u8e0f\u307f\u51fa\u3059\u306e\u4f55\uff1f\u3086\u308b\u3059\u304e\u308b\u3060\u308d\u2026<\/p>\n\n\n\n<p>\u30aa\u30bb\u3060\u3051\u5168\u304f\u5b58\u5728\u7d1a\u4f4d\u843d\u3061\u306a\u304b\u3063\u305f\u306a\u3002\u4e00\u8a00\u3082\u3057\u3083\u3079\u3093\u306a\u304b\u3063\u305f\u3057\u3002\u3042\u306e\u58c1\u3092\u4e00\u77ac\u7a81\u304d\u7834\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3066\u529b\u3067\u3053\u3058\u958b\u3051\u3066\u7dad\u6301\u3082\u3067\u304d\u308b\u306e\u3084\u3070\u3059\u304e\u306a\u3044\uff1f\u3053\u308c\u3088\u308a\u4e0a\u304c\u3044\u308b\u306e\u60aa\u9b54\u52e2\u529b\u3084\u3070\u3059\u304e\u3067\u3057\u3087\u3002<\/p>\n\n\n\n<p>\u305d\u3057\u3066\u30de\u30eb\u30b3\u30ad\u30a2\u30b9\u3082\u6700\u5f8c\u307e\u3067\u3076\u308c\u306d\u3048\u306a\u2026\u5b58\u5728\u7d1a\u4f4d\u30af\u30c3\u30bd\u4f4e\u3044\u306e\u306f\u9593\u9055\u3044\u306a\u3044\u3093\u3060\u3051\u3069\u4eba\u9593\u81ed\u3059\u304e\u308b\u3057\u96d1\u306a\u884c\u52d5\u3070\u3063\u304b\u3057\u3066\u308b\u304b\u3089\u3080\u3057\u308d\u305f\u307e\u3057\u3044\u306e\u840c\u82bd\u306f\u611f\u3058\u308b\u3093\u3060\u3088\u306a\u2026<\/p>\n\n\n\n<p>\u3044\u3044\u8a71\u2026\u3044\u3044\u8a71\u304b\u3053\u308c\uff1f\u3088\u304f\u308f\u304b\u3093\u306a\u3044\u3051\u3069\u3044\u3044\u611f\u3058\u306b\u306a\u3063\u305f\u306a\u2026<\/p>\n\n\n\n<p>\u305d\u3046\u3044\u3048\u3070\u30d5\u30a7\u30f3\u30ea\u30eb\u306f\uff1f<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u300c\u300e\u9032\u6483\u306e\u5de8\u4eba\u300f\u3068\u89e3\u5256\u5b66\u300d\u3092\u8aad\u307f\u9032\u3081\u305f\u3002\u3057\u3070\u3089\u304f\u524d\u306b\u8cb7\u3063\u3066\u653e\u7f6e\u3057\u3066\u305f\u3084\u3064\u3002<\/p>\n\n\n\n<p>\u307b\u3068\u3093\u3069\u306e\u7b4b\u8089(\u9aa8\u683c\u7b4b)\u306f\u8907\u6570\u306e\u9aa8\u306b\u307e\u305f\u304c\u3063\u3066\u4ed8\u3044\u3066\u3044\u308b\u3068\u3044\u3046\u8a71\u304c\u7d39\u4ecb\u3055\u308c\u3066\u3044\u305f\u3002\u7b4b\u8089\u306f\u9aa8\u3068\u9aa8\u3068\u306e\u4f4d\u7f6e\u95a2\u4fc2\u3092\u52d5\u304b\u3059\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306a\u3093\u3060\u304b\u3089\u4e00\u3064\u306e\u9aa8\u306b\u4ed8\u3044\u3066\u3066\u3082\u305d\u308a\u3083\u4ed5\u65b9\u306a\u3044\u3002\u8a00\u308f\u308c\u3066\u307f\u308c\u3070\u305d\u308c\u306f\u305d\u3046\u306a\u3093\u3060\u3051\u3069\u76ee\u304b\u3089\u9c57\u3060\u3063\u305f\u3002\u3053\u308c\u77e5\u3063\u3066\u308b\u3060\u3051\u3067\u7b4b\u8089\u3078\u306e\u7406\u89e3\u304c\u672c\u5f53\u306b\u304c\u3089\u3063\u3068\u5909\u308f\u308a\u305d\u3046\u3002<\/p>\n\n\n\n<p>\u3042\u3068\u305d\u306e\u539f\u5247\u306b\u5bfe\u3059\u308b\u4f8b\u5916\u7684\u306a\u7b4b\u8089\u306e\u8a71\u3082\u9762\u767d\u304b\u3063\u305f\u3002\u591a\u304f\u306e\u7b4b\u8089\u304c\u9aa8\u540c\u58eb\u3092\u7e4b\u3044\u3067\u3044\u308b\u305f\u3081\u306b\u9aa8\u683c\u7b4b\u306b\u5206\u985e\u3055\u308c\u308b\u306e\u3068\u9055\u3044\u3001\u9854\u306e\u7b4b\u8089\u306f\u9aa8\u3068\u76ae\u819a\u3092\u3064\u306a\u3044\u3067\u3044\u308b\u304b\u3089\u300c\u76ae\u7b4b\u300d\u306b\u5206\u985e\u3055\u308c\u308b\u306e\u3060\u3068\u3044\u3046\u3002\u76ae\u819a\u3068\u7b4b\u8089\u3063\u3066\u3069\u3046\u3064\u306a\u304c\u3063\u3066\u308b\u3093\u3060\u308d\u3002\u305d\u308c\u8a00\u3063\u305f\u3089\u9aa8\u3068\u3069\u3046\u7e4b\u304c\u3063\u3066\u308b\u3093\u3060\u308d\u3046\u3068\u3044\u3046\u65b9\u3082\u3088\u304f\u5206\u304b\u3093\u306a\u3044\u3051\u3069\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>Flutter\u3092\u3061\u3087\u3063\u3068\u52c9\u5f37\u3057\u3066\u3044\u308b\u3002Dart\u5b9f\u969b\u306b\u66f8\u3044\u3066\u307f\u308b\u3068const\u5468\u308a\u3067\u30a8\u30e9\u30fc\u304c\u983b\u767a\u3057\u305f\u3002C++\u3067\u3044\u3046\u6240\u306econstexpr\u306a\u3093\u3060\u304b\u3089\u305d\u308a\u3083\u53b3\u3057\u3044\u3088\u306d\u2026JS\u306econst\u306e\u611f\u899a\u304c\u629c\u3051\u304d\u3063\u3066\u306a\u3044\u3088\u3046\u3060\u3002<\/p>\n\n\n\n<p>StatefulWidget\u304cStatefulWidget\u3068State\u3067\u5206\u3051\u3066\u66f8\u304f\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u3066\u3001\u3069\u3046\u3057\u3066\u3053\u3046\u3044\u3046\u69cb\u9020\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u3061\u3087\u3063\u3068\u3088\u304f\u5206\u304b\u3089\u306a\u3044\u3002\u306a\u306b\u304c\u3057\u304b\u306e\u5fc5\u8981\u6027\u304c\u3042\u3063\u3066\u3053\u3046\u3057\u3066\u308b\u306e\u3067\u306f\u3042\u308d\u3046\u304c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dart\u8a00\u8a9e\u3092\u3061\u3087\u3063\u3068\u5b66\u3093\u3060\u3002\u6559\u79d1\u66f8\u306f\u516c\u5f0f\u306elanguage-tour\u3002 \u57fa\u672c\u7684\u306a\u578b\u306f Int Double String bool List Set Map Null \u3042\u305f\u308a\u3002\u3042\u3068\u3042\u308b\u306e\u306f\u95a2\u6570\u578b\u3068\u30af\u30e9\u30b9\u578b\u3002enum\u578b\u3082 &hellip; <\/p>\n<div><a href=\"https:\/\/k.foolslab.net\/dailyreport\/2021-8-24%e7%81%ab\/\" class=\"more\">Read more &raquo;<span class=\"screen-reader-text\"> &#8220;2021\/8\/24(\u706b)&#8221;<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1628","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/posts\/1628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/comments?post=1628"}],"version-history":[{"count":7,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/posts\/1628\/revisions"}],"predecessor-version":[{"id":1635,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/posts\/1628\/revisions\/1635"}],"wp:attachment":[{"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/media?parent=1628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/categories?post=1628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/k.foolslab.net\/dailyreport\/wp-json\/wp\/v2\/tags?post=1628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}