{"id":505,"date":"2019-10-01T20:30:14","date_gmt":"2019-10-01T11:30:14","guid":{"rendered":"https:\/\/www.goodambition.biz\/?p=505"},"modified":"2019-12-10T18:18:32","modified_gmt":"2019-12-10T09:18:32","slug":"struggle-for-programming-4","status":"publish","type":"post","link":"https:\/\/www.goodambition.biz\/goodambition\/struggle-for-programming-4\/","title":{"rendered":"\u96e3\u3057\u3044\u3068\u8a55\u5224\uff01\u521d\u5fc3\u8005\u304cN\u4e88\u5099\u6821\u3067\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u5b66\u3093\u3060\u611f\u60f3\u3068\u5099\u5fd8\u9332\uff01<br>No.4\uff1aJavaScript (2\/2)"},"content":{"rendered":"<h1>N\u4e88\u5099\u6821 \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b3\u30fc\u30b9 \u7b2c4\u56de<\/h1>\n<p>\u3042\u306a\u305f\u306f2019\u5e74\u306e\u76ee\u6a19\u3063\u3066\u7acb\u3066\u307e\u3057\u305f\u304b\uff1f<br \/>\n\u3069\u3093\u306a\u76ee\u6a19\u3092\u7acb\u3066\u305f\u304b\u899a\u3048\u3066\u3044\u307e\u3059\u304b\uff1f<\/p>\n<p>\u79c1\u306f2018\u5e74\u672b\u306b2019\u5e74\u306e\u76ee\u6a19\u3092\u7acb\u3066\u307e\u3057\u305f\u3002<br \/>\n\u305d\u306e\u4e00\u3064\u306b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u5b66\u3073\u4ed5\u4e8b\u3068\u3057\u3066\u4f7f\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3092\u3042\u3052\u307e\u3057\u305f\u3002<br \/>\n\u305d\u3057\u3066\u3001\u601d\u3044\u7acb\u3063\u305f\u304c\u5409\u65e5\u3068\u300cN\u4e88\u5099\u6821\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b3\u30fc\u30b9\u300d\u3092\u7533\u3057\u8fbc\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u3057\u3066\u53d7\u8b1b\u3068\u540c\u6642\u306b\u81ea\u8eab\u306e\u632f\u66ff\u3068\u3001\u3053\u308c\u304b\u3089\u59cb\u3081\u3088\u3046\u3068\u8003\u3048\u3066\u3044\u308b\u4eba\u306e\u53c2\u8003\u306b\u306a\u308c\u3070\u3068\u30d6\u30ed\u30b0\u3092\u66f8\u304d\u59cb\u3081\u307e\u3057\u305f\u3002<br \/>\n\u4eca\u56de\u30d6\u30ed\u30b0\u306e\u79fb\u8a2d\u306b\u3068\u3082\u306a\u3044\u3001\u518d\u5ea6\u305d\u306e\u30d6\u30ed\u30b0\u3092\u8aad\u307f\u8fd4\u3057\u306a\u304c\u3089\u3001\u4eca\u601d\u3046\u3053\u3068\u3092\u52a0\u3048\u3066\u8a18\u8f09\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u79c1\u304c\u53d7\u8b1b\u3057\u305f\u306e\u306f\u30102018\u5e74\u5ea6\u3011\u3067\u3001\u73fe\u5728\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u30102019\u5e74\u5ea6\u3011\u3068\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u3082\u66f8\u3044\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d6\u30ed\u30b0\u306f\u3001\u521d\u5fc3\u8005\u304c\u5b66\u3073\u306a\u304c\u3089\u66f8\u3044\u3066\u3044\u308b\u305f\u3081\u3001\u9593\u9055\u3063\u3066\u3044\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\n\u5206\u304b\u308a\u6b21\u7b2c\u4fee\u6b63\u3057\u3066\u3044\u304f\u3064\u3082\u308a\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u3042\u305f\u308a\u3082\u542b\u3081\u697d\u3057\u3093\u3067\u3044\u305f\u3060\u3051\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002\u00a0<\/p>\n<p>\u6700\u5f8c\u306b\u9032\u3081\u3066\u3044\u3066\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u3068\u3053\u308d\u3084\u6c17\u306b\u306a\u3063\u305f\u3068\u3053\u308d\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<h1>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5165\u9580 web\u30a2\u30d7\u30ea\u30b3\u30fc\u30b9\u3000\u7b2c4\u56de<\/h1>\n<p>\u524d\u56de\u307e\u3067\u306f\u7121\u6599\u4f53\u9a13\u7248\u306e\u5185\u5bb9\u3067\u3001\u4eca\u56de\u304b\u3089\u6709\u6599\u30b3\u30fc\u30b9\u306e\u5185\u5bb9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7121\u6599\u4f53\u9a13\u7248\u306f\u3001\u6709\u6599\u30b3\u30fc\u30b9\u306e\u4e00\u90e8\u5206\u306e\u307f\u306e\u53d7\u8b1b\u304c\u53ef\u80fd\u3067\u3057\u305f\u3002<br \/>\n\uff08\u7121\u6599\u4f53\u9a13\u7248\u304c\u7d42\u4e86\u3057\u305f\u6642\u70b9\u3067\u3001\u6709\u6599\u30b3\u30fc\u30b9\u306e5%\u304c\u7d42\u4e86\u3057\u3066\u3044\u308b\u72b6\u614b\uff09<\/p>\n<p>\u6709\u6599\u30b3\u30fc\u30b9\u306f\u7b2c\uff10\u7ae0\u304b\u3089\uff5e\u7b2c\uff17\u7ae0\u307e\u3067\u3042\u308a\u3001\u305d\u306e\u3046\u3061\u7b2c\uff10\u7ae0\u3068\u7b2c\uff11\u7ae0\u306e\u4e00\u90e8\u304c\u7121\u6599\u4f53\u9a13\u7248\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3057\u305f\u3002<br \/>\n\uff08\u7b2c\uff11\u7ae0\u306f\u3001\u7121\u6599\u4f53\u9a13\u7248\u7d42\u4e86\u6642\u70b9\u3067\uff11\uff12\uff05\u304c\u7d42\u4e86\u3057\u3066\u3044\u308b\u72b6\u614b\uff09<\/p>\n<p>\u4eca\u56de\u306f\u524d\u56de\u306b\u5f15\u304d\u7d9a\u304dJavaScript\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4eca\u56de\u306e\u5185\u5bb9\u307e\u3068\u3081\uff08\u7b2c1\u7ae0 09~11\uff09<br \/>\n\u30fbJavaScript\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3<br \/>\n\u30fbJavaScript\u306e\u95a2\u6570<br \/>\n\u30fbJavaScript\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/p>\n<\/li>\n<li>\n<p>\u4eca\u56de\u306e\u76ee\u6a19<br \/>\n\uff1c\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u76ee\u6a19\uff1e<br \/>\n\u95a2\u6570\u3092\u7528\u3044\u3066\u6b21\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u305b\u308b\u3053\u3068\u3067\u3059\u3002<br \/>\n\uff0a\u753b\u50cf\u306f\u4e00\u90e8\u52a0\u5de5\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/29.png\" alt=\"\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u76ee\u6a19\" width=\"631\" height=\"630\" class=\"aligncenter size-full wp-image-506\" \/><br \/>\n\uff1c\u95a2\u6570\u306e\u76ee\u6a19\uff1e<br \/>\n\u8a95\u751f\u65e5\u3092\u5165\u308c\u308b\u3053\u3068\u3067\u751f\u307e\u308c\u3066\u304b\u3089\u306e\u79d2\u6570\u3092\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3067\u8868\u793a\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u00a0<br \/>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/30.png\" alt=\"\u751f\u307e\u308c\u3066\u304b\u3089\u306e\u79d2\u6570\" width=\"296\" height=\"32\" class=\"aligncenter size-full wp-image-507\" \/><br \/>\n\uff1c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u76ee\u6a19\uff1e<br \/>\n\u6642\u9593\u5f53\u3066\u30b2\u30fc\u30e0\u306e\u4f5c\u6210\uff1a10\u79d2\u7acb\u3063\u305f\u3068\u601d\u3046\u3068\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3001\u8aa4\u5dee0.5\u79d2\u4ee5\u5185\u3067\u3042\u308c\u3070\u300c\u51c4\u3044\u300d\u3068\u51fa\u308b\u30b2\u30fc\u30e0\u306e\u4f5c\u6210<\/p>\n<\/li>\n<\/ul>\n<p><\/p>\n<ul>\n<li>\u4eca\u56de\u65b0\u3057\u304f\u6271\u3063\u3066\u3044\u308b\u30bf\u30b0\u7b49<br \/>\n\u30fbvar \u3007=[]<br \/>\n\u30fbgetElementById(&#8220;\u25cb\u25cb\u25cb&#8221;)<br \/>\n\u30fb\u3007.length<br \/>\n\u30fb\u3007.push( )<br \/>\n\u30fbnew Date()<br \/>\n\u30fb\u3007.getTime()<br \/>\n\u30fbgetElementById(&#8220;\u25cb\u25cb\u25cb&#8221;)<br \/>\n\u30fbinnerText<br \/>\n\u30fbsetInterval\u00a0<br \/>\n\u30fbconfirm(&#8216;\u25cb\u25cb\u25cb&#8217;)<br \/>\n\u30fbonkeypress<\/li>\n<\/ul>\n<h2>JavaScript\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3<\/h2>\n<p>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3068\u306f\u3001\u6570\u5024\u3084\u6587\u5b57\u306a\u3069\u306e\u8981\u7d20\u306e\u96c6\u307e\u308a\u306e\u4e8b\u3067\u3059\u3002<br \/>\n\u6570\u5024\u3084\u7d44\u306a\u3069\u3092\u3042\u3089\u304b\u3058\u3081\u8a2d\u5b9a\u3057\u3066\u304a\u3044\u3066\u3001\u5f8c\u3005\u306b\u547c\u3073\u51fa\u305b\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>var \u3007 = []<\/h3>\n<p>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3059\u308b\u306e\u306b\u3001\u524d\u56de\u3082\u5909\u6570\u3092\u6307\u5b9a\u3059\u308b\u6642\u306b\u4f7f\u7528\u3057\u305fvar\u3092\u7528\u3044\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4e0b\u306e\u3088\u3046\u306b1\uff5e4\u6708\u307e\u3067\u3092\u914d\u5217\u3068\u3057\u3066\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u3042\u3068\u304b\u3089\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>var months = [&#8216;1\u6708&#8217;,&#8217;2\u6708&#8217;,&#8217;3\u6708&#8217;,&#8217;4\u6708&#8217;];<br \/>\ndocument.write(months<img class=\"ranking-number\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/themes\/jin\/img\/rank02.png\" \/>);<br \/>\n\u4e0a\u8a18\u306e\u7d50\u679c\u304c\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/31.png\" alt=\"\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u7d50\u679c\uff083\u6708\uff09\" width=\"86\" height=\"32\" class=\"aligncenter size-full wp-image-508\" \/>\n<p>1\u884c\u76ee\u3067\u3001months \u3068\u8a00\u3046\u540d\u524d\u3067[&#8216;1\u6708&#8217;, &#8216;2\u6708&#8217;, &#8216;3\u6708&#8217;, &#8216;4\u6708&#8217;]\u3000\u3068\u3044\u3046\u914d\u5217\u3092\u8a2d\u5b9a\u3057\u3066\u304a\u304d\u307e\u3059\u3002<br \/>\n\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u3001<\/p>\n<p>months [0]\uff1d1\u6708\u3001months <img class=\"ranking-number\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/themes\/jin\/img\/rank01.png\" \/>\uff1d2\u6708\u3001months <img class=\"ranking-number\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/themes\/jin\/img\/rank02.png\" \/>\uff1d3\u6708\u3001months <img class=\"ranking-number\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/themes\/jin\/img\/rank03.png\" \/> =4\u6708<\/p>\n<p>\u3068\u3044\u3046\u5f62\u3067\u5f8c\u3067\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u3001\u914d\u5217\u306e1\u756a\u76ee\u306f<img class=\"ranking-number\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/themes\/jin\/img\/rank01.png\" \/>\u3067\u306f\u306a\u304f[0]\u3067\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3>\u3007.length<\/h3>\n<p>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u8a2d\u5b9a\u3057\u305f\u6570\u5024\u3084\u6587\u5b57\u306e\u500b\u6570\u3092\u4f7f\u7528\u3059\u308b\u6642\u306b\u4f7f\u3046\u95a2\u6570\u3067\u3059\u3002<br \/>\n\u8a2d\u5b9a\u3057\u305f\u3007\u306e\u914d\u5217\u306e\u500b\u6570\u3092\u6307\u5b9a\u3059\u308b\u6642\u306b\u3007.length\u3092\u7528\u3044\u307e\u3059\u3002<\/p>\n<p>var months = [&#8216;1\u6708&#8217;,&#8217;2\u6708&#8217;,&#8217;3\u6708&#8217;,&#8217;4\u6708&#8217;];<br \/>\ndocument.write(months.length);<\/p>\n<p>1\u884c\u76ee\u3067\u3001months\u306e\u914d\u5217\u3092\u8a2d\u5b9a\u3057<br \/>\n2\u884c\u76ee\u3067\u3001months\u306e\u914d\u5217\u306e\u500b\u6570\u3092\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u7d50\u679c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/25-e1569928474641.png\" alt=\"length\u7d50\u679c\" width=\"73\" height=\"44\" class=\"aligncenter size-full wp-image-516\" \/>\n<p>\u3053\u306elength\u3068\u524d\u56de\u306efor\u6587\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u7e70\u308a\u8fd4\u3057\u3066\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u3007.push( )<\/h3>\n<p>\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u8a2d\u5b9a\u3057\u305f\u914d\u5217\u306b\u5f8c\u304b\u3089\u8981\u7d20\u3092\u901a\u904e\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<br \/>\n\u305d\u306e\u6642\u306b\u4f7f\u3046\u306e\u304cpush\u3067\u3059\u3002<\/p>\n<p>var months = [&#8216;1\u6708&#8217;,&#8217;2\u6708&#8217;,&#8217;3\u6708&#8217;,&#8217;4\u6708&#8217;];<br \/>\nmonths.push(&#8216;5\u6708&#8217;);<br \/>\ndocument.write(months<img class=\"ranking-number\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/themes\/jin\/img\/rank04.png\" \/>);<\/p>\n<p>1\u884c\u76ee\u3067\u3001months\u306e\u914d\u5217\u3092\u8a2d\u5b9a\u3057<br \/>\n2\u884c\u76ee\u3067\u3001months\u306e\u914d\u5217\u306b\u65b0\u3057\u304f\u300c5\u6708\u300d\u3068\u3044\u3046\u8981\u7d20\u3092\u8ffd\u52a0\u3057<br \/>\n3\u884c\u76ee\u3067\u3001months\u306e5\u756a\u76ee\u306e\u8981\u7d20\u3092\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\uff081\u756a\u76ee\u304c[0]\u306a\u306e\u3067\u3001<img class=\"ranking-number\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/themes\/jin\/img\/rank04.png\" \/>\u306f5\u756a\u76ee\u306b\u306a\u308a\u307e\u3059\uff09<\/p>\n<p>\u4e0a\u8a18\u306e\u7d50\u679c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/26-e1569928518532.png\" alt=\"push\u7d50\u679c\" width=\"83\" height=\"29\" class=\"aligncenter size-full wp-image-517\" \/>\n<p>\u4eca\u56de\u306e\u6388\u696d\u306e\u76ee\u6a19\u753b\u50cf\u306f\u3001<\/p>\n<p>\u300c\u3042\uff5e\u3053\u300d\u3068\u3044\u3046\u914d\u5217\u3092\u6307\u5b9a\u3057\u304a\u304d\u3001\u305d\u306e\u5f8c\u3001\u524d\u56de\u5b66\u3093\u3060\u95a2\u6570\u3092\u4f7f\u3063\u3066\u547c\u3073\u51fa\u3059\u3053\u3068\u3067\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>JavaScript\u306e\u95a2\u6570\u306b\u3064\u3044\u3066<\/h2>\n<p>\u524d\u56de\u307e\u3067\u306b\u5b66\u3093\u3060\u95a2\u6570\u306e\u307b\u304b\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u95a2\u6570\u3092\u5b66\u3073\u307e\u3059\u3002<\/p>\n<h3>new Date()<\/h3>\n<p>\u73fe\u5728\u306e\u65e5\u6642\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u6642\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>var now = new Data();<br \/>\ndocument.wirte(now);<\/p>\n<p>1\u884c\u76ee\u3067\u3001now\u3068\u3044\u3046\u5909\u6570\u3092\u6307\u5b9a\u3057\u3001now\u306b\u53d6\u5f97\u3057\u305f\u73fe\u5728\u306e\u6642\u9593\u3092\u4ee3\u5165\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n2\u884c\u76ee\u3067\u3001now\u306e\u4e2d\u8eab\u3092\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u7d50\u679c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<br \/>\n\uff08\u9ed2\u5857\u308a\u306e\u3068\u3053\u308d\u306b\u5e74\u6708\u65e5\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\uff09<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/27-e1569928564115.png\" alt=\"\u73fe\u5728\u6642\u523b\" width=\"397\" height=\"33\" class=\"aligncenter size-full wp-image-518\" \/>\n<h3>\u3007.getTime()<\/h3>\n<p>getTime()\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u30011970\u5e741\u67081\u65e5\u304b\u3089\u306e\u3007\u3067\u6307\u5b9a\u3057\u305f\u65e5\u6642\u307e\u3067\u306e\u7d4c\u904e\u6642\u9593\u3092\u30df\u30ea\u79d2\uff081000\u5206\u306e1\u79d2\uff09\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u69d8\u306b\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067\u30011970\u5e741\u67081\u65e5\u304b\u30892019\u5e7412\u670831\u65e523\u664259\u5206\u307e\u3067\u306e\u7d4c\u904e\u6642\u9593\u3092\u30df\u30ea\u79d2\u3067\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n<p>var selectTime = new Date(2019, 11, 31, 23, 59);<br \/>\nvar seconds =selectTime.getTime();<br \/>\ndocument.write(seconds);<\/p>\n<p>1\u884c\u76ee\u3067\u3001\u5909\u6570selectTime\u3092\u8a2d\u5b9a\u3057\u30012019\u5e7412\u670831\u65e523\u664259\u79d2\u3092\u4ee3\u5165\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n2\u884c\u76ee\u3067\u3001\u5909\u6570seconds\u3092\u8a2d\u5b9a\u3057\u3001selectTime\u306e\u6642\u9593\u30921970\u5e741\u67081\u65e5\u304b\u3089\u306e\u7d4c\u904e\u6642\u9593\u3092\u30df\u30ea\u79d2\u3067\u4ee3\u5165\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n3\u884c\u76ee\u3067\u3001seconds\u306e\u5185\u5bb9\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u7d50\u679c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/28-e1569928438313.png\" alt=\"2019\u5e74\u672b\u307e\u3067\u306e\u79d2\u6570\" width=\"147\" height=\"41\" class=\"aligncenter size-full wp-image-519\" \/>\n<h3>getElementById(&#8220;\u25cb\u25cb\u25cb&#8221;)\u3001.innerText<\/h3>\n<p>gertElementById\u3067\u306f\u3001\u6307\u5b9a\u3055\u308c\u305fid\uff08\u4eca\u56de\u306f\u25cb\u25cb\u25cb\uff09\u3092\u5f15\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\ninnerText\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001\u6307\u5b9a\u3057\u305f\u5909\u6570\u306e\u4e2d\u8eab\u3092\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<br \/>\n\u300c\u25cb\u25cb\u25cb.innerText = \u00d7\u00d7\u00d7\u300d\u306b\u3088\u308a\u3001\u25cb\u25cb\u25cb\u306e\u4e2d\u306e\u6587\u7ae0\u3092\u00d7\u00d7\u00d7\u306b\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n<p>getElementByid\u3068innerText\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u7528\u3044\u308b\u3053\u3068\u3067\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30fb\u30d5\u30a1\u30a4\u30ebA\uff08HTML\u30d5\u30a1\u30a4\u30eb\uff09<\/p>\n<p id = \"ID-A\">\n<p>\u30fb\u30d5\u30a1\u30a4\u30ebB\uff08JavaScript\u30d5\u30a1\u30a4\u30eb\uff09<br \/>\ndocument.getElementById(&#8216;ID-A&#8217;).innerText = &#8220;blog&#8221;;<\/p>\n<p>\u30d5\u30a1\u30a4\u30ebA\u3067\u306f\u3001\u540d\u524d\u3092\u300cID-A\u300d\u3068\u3044\u3046\u540d\u524d\u306ep\u30bf\u30b0\u3092\u8a2d\u5b9a\u3057\u3001ID-A\u306e\u4e2d\u306e\u6587\u7ae0\u3092\uff11\u3064\u306e\u6bb5\u843d\u3068\u3057\u3066\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u30d5\u30a1\u30a4\u30ebB\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30ebA\u3067\u6307\u5b9a\u3055\u308c\u305fid\uff08\u4eca\u56de\u306fID-A\uff09\u306e\u4e2d\u306e\u6587\u7ae0\u3092\u3001blog\u306b\u7f6e\u304d\u63db\u3048\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u7d50\u679c\u304c<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/32.png\" alt=\"innerText\u7d50\u679c\uff08blog\uff09\" width=\"94\" height=\"28\" class=\"aligncenter size-full wp-image-509\" \/>\n<h3>setInterval\u00a0<\/h3>\n<p>\u6307\u5b9a\u3055\u308c\u305f\u95a2\u6570\u3092\u3001\u6307\u5b9a\u3057\u305f\u30df\u30ea\u79d2\u3054\u3068\u306b\u7e70\u308a\u8fd4\u3057\u5b9f\u884c\u3059\u308b\u969b\u306b\u4f7f\u3046\u306e\u304csetInterval\u95a2\u6570\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u25cb\u25cb\u3068\u3044\u3046\u64cd\u4f5c\u3092\u3001\u00d7\u00d7\u30df\u30ea\u79d2\u3054\u3068\u306b\u7e70\u308a\u8fd4\u3057\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\uff08\u00d7\u00d7\u306b\u306f\u6570\u5b57\u304c\u5165\u308a\u307e\u3059\u3002\uff09<\/p>\n<p>function \u25cb\u25cb (){ }<br \/>\n setInterval (\u25cb\u25cb, \u00d7\u00d7)<\/p>\n<p>\u3053\u3053\u307e\u3067\u306b\u5b66\u3093\u3060\u95a2\u6570\u3092\u4f7f\u3044\u3001\u751f\u307e\u308c\u3066\u304b\u3089\u306e\u79d2\u6570\u3092\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3067\u8868\u793a\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7d44\u3080\u306e\u304c\u3053\u306e\u9805\u306e\u76ee\u6a19\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u3064\u3044\u3066<\/h2>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u540d\u524d\u3068\u5024\u306a\u3069\u8907\u6570\u306e\u6761\u4ef6\u3092\u3082\u3063\u305f\u8a18\u53f7\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n\u305f\u3068\u3048\u3070\u300115\u6b73\u306e\u9ad8\u6821\u751f\u3067\u3042\u308b\u4e00\u90ce\u541b\u3068\u3044\u3046\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>var A = {<br \/>\n name: &#8216;\u4e00\u90ce&#8217;,<br \/>\n age: 15,<br \/>\n school:&#8217;high school&#8217;};<br \/>\n1\u884c\u76ee\u3067\u3001\u5909\u6570A\u3092\u8a2d\u5b9a\u3057<br \/>\n2~4\u884c\u76ee\u3067\u3001A\u306e\u4e2d\u306ename, age, school\u3092\u305d\u308c\u305e\u308c\u4e00\u90ce\u300115\u3001high school\u3068\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u305d\u306e\u5f8c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u305d\u308c\u305e\u308c\u306e\u8981\u7d20\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>document.write(A.name);<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/33.png\" alt=\"\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u7d50\u679c\uff08\u4e00\u90ce\uff09\" width=\"88\" height=\"34\" class=\"aligncenter size-full wp-image-510\" \/>\n<p>document.write(A.age);<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/34.png\" alt=\"\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u7d50\u679c\uff0815\uff09\" width=\"81\" height=\"38\" class=\"aligncenter size-full wp-image-511\" \/>\n<p>document.write(A.school);<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/35.png\" alt=\"\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u7d50\u679c\uff08high school\uff09\" width=\"133\" height=\"34\" class=\"aligncenter size-full wp-image-512\" \/>\n<h3>confirm(&#8216;\u25cb\u25cb\u25cb&#8217;)<\/h3>\n<p>confirm\u3068\u306f\u300c\u78ba\u8a8d\u3059\u308b\u300d\u3068\u3044\u3046\u610f\u5473\u306e\u5358\u8a9e\u3067\u3001confirm()\u3067\u306f\u3001(  )\u5185\u306e\u6587\u5b57\u5217\u3092\u30c0\u30a4\u30a2\u30ed\u30b0\u3067\u8868\u793a\u3059\u308b\u95a2\u6570\u3067\u3059\u3002<br \/>\n\u30c0\u30a4\u30a2\u30ed\u30b0\u3068\u306f\u3001\u4f55\u3089\u304b\u306e\u901a\u77e5\u3092\u884c\u3046\u305f\u3081\u306b\u8868\u793a\u3055\u308c\u308b\u5c0f\u3055\u306a\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>confirm(&#8216;\u25cb\u25cb\u25cb&#8217;);<\/p>\n<p>\u4ee5\u4e0a\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u5b9f\u884c\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u69d8\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<img loading=\"lazy\" src=\"https:\/\/www.goodambition.biz\/goodambition\/wp-content\/uploads\/2019\/10\/38-e1569928051930.png\" alt=\"confirm\u7d50\u679c\" width=\"489\" height=\"211\" class=\"aligncenter size-full wp-image-515\" \/>\n<h3>.onkeypress<\/h3>\n<p>onkeypress\u306f\u3001\u30ad\u30fc\u30dc\u30fc\u30c9\u306e\u3044\u305a\u308c\u304b\u306e\u30ad\u30fc\u3092\u62bc\u3057\u305f\u969b\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<br \/>\n\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>document.body.onkeypress = \u25cb\u25cb\u25cb<\/p>\n<p>\u3053\u308c\u306f\u300cHTML\u4e0a\u3067\u3044\u305a\u308c\u304b\u306e\u30ad\u30fc\u304c\u62bc\u3055\u308c\u305f\u3089\u25cb\u25cb\u25cb\u3068\u3044\u3046\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u300d\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\ndocument.body\u3068\u306f\u3001\u4efb\u610f\u306eHTML\u4e2d\u306ebody\u30bf\u30b0\u5185\u306e\u5185\u5bb9\u3092\u6307\u3057\u307e\u3059\u3002<br \/>\n\u540c\u69d8\u306bdocument.head\u306f\u3001\u4efb\u610f\u306eHTML\u4e2d\u306ehead\u30bf\u30b0\u5185\u306e\u5185\u5bb9\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u9805\u306e\u76ee\u6a19\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6a5f\u80fd\u3068\u4eca\u307e\u3067\u306e\u95a2\u6570\u3092\u4f7f\u3044\u6642\u9593\u3042\u3066\u30b2\u30fc\u30e0\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u00a0<\/p>\n<h2>\u5206\u304b\u308a\u306b\u304f\u304b\u3063\u305f\u70b9<\/h2>\n<h3>&#8216;&lt; p >&#8217; &#8216;&lt; \/p >&#8217; \u306b\u3064\u3044\u3066<\/h3>\n<p>\u8868\u793a\u3059\u308b\u5185\u5bb9\u3092\u6bb5\u843d\u3092\u5909\u3048\u3066\u8868\u793a\u3055\u305b\u305f\u3044\u6642\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<br \/>\n\u4f8b\u3048\u3070\u3001'&lt; p >&#8217; &#8216;&lt; \/p >&#8217; 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