{"id":2368,"date":"2023-02-16T19:33:59","date_gmt":"2023-02-16T10:33:59","guid":{"rendered":"https:\/\/www.java-career.com\/column\/?p=2368"},"modified":"2023-11-14T15:51:19","modified_gmt":"2023-11-14T06:51:19","slug":"whats-typescript","status":"publish","type":"post","link":"https:\/\/www.java-career.com\/column\/tech\/whats-typescript\/","title":{"rendered":"TypeScript\u3068\u306f\uff1fJavaScript\u3068\u306f\u4f55\u304c\u9055\u3046\u306e\u304b\u3001\u7279\u5fb4\u3084\u52c9\u5f37\u65b9\u6cd5\u306a\u3069\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac"},"content":{"rendered":"\n<p>\u300cTypeScript\u300d\u3068\u3044\u3046\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3092\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f<br>Google\u306e\u958b\u767a\u3067\u63a1\u7528\u3055\u308c\u308b\u306a\u3069\u6ce8\u76ee\u3055\u308c\u3066\u3044\u308b\u65b0\u3057\u3044\u8a00\u8a9e\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<p>JavaScript\u3092\u62e1\u5f35\u3057\u3066\u958b\u767a\u3055\u308c\u3066\u3044\u305f\u308a\u3001\u5927\u898f\u6a21\u958b\u767a\u304c\u53ef\u80fd\u306a\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u3068\u306e\u3053\u3068\u3067\u3001\u4e16\u754c\u7684\u306b\u3082\u6ce8\u76ee\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>JavaScript\u3067\u306f\u30d0\u30b0\u304c\u767a\u751f\u3057\u3084\u3059\u3044\u3068\u3044\u3046\u30ea\u30b9\u30af\u3082\u62b1\u3048\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u305d\u306e\u554f\u984c\u3092\u89e3\u8aac\u3059\u308b\u305f\u3081\u306b\u958b\u767a\u3055\u308c\u305f\u306e\u304cTypeScript\u306a\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001TypeScript\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3001JavaScript\u3068\u306e\u9055\u3044\u3084\u3001JavaScript\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306e\u95a2\u4fc2\u6027\u3001\u5c06\u6765\u6027\u306a\u3069\u3092\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><meta charset=\"utf-8\">\u25a0\u25a1<meta charset=\"utf-8\">\u25a0\u25a1\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306a\u3069IT\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u76ee\u6307\u3057\u3066\u3044\u308b\u306a\u3089IT\u696d\u754c\u5c02\u9580\u8ee2\u8077\u30b5\u30a4\u30c8\u300cJava\u30ad\u30e3\u30ea\u300d\u304c\u6700\u9069\uff01<a href=\"https:\/\/www.java-career.com\/regist\/\" target=\"_blank\" rel=\"noreferrer noopener\" title=\"https:\/\/www.java-career.com\/regist\/\">\u5b8c\u5168\u7121\u6599\u306e\u4f1a\u54e1\u767b\u9332\u306f\u3053\u3061\u3089\u304b\u3089<\/a><meta charset=\"utf-8\">\u25a0\u25a1<meta charset=\"utf-8\">\u25a0\u25a1<\/p>\n\n\n\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">Contents<\/p><ul class=\"toc_list\"><li><a href=\"#TypeScript\">TypeScript\u3068\u306f\uff1f<\/a><\/li><li><a href=\"#TypeScript-2\">TypeScript\u306e\u7279\u5fb4\u30fb\u5f37\u307f<\/a><ul><li><a href=\"#i\">\u578b\u5b9a\u7fa9\u304c\u3067\u304d\u308b<\/a><\/li><li><a href=\"#JavaScript\">JavaScript\u3068\u306e\u4e92\u63db\u6027\u304c\u3042\u308b<\/a><\/li><\/ul><\/li><li><a href=\"#TypeScriptJavaScript\">TypeScript\u3068JavaScript\u3068\u306e\u9055\u3044<\/a><ul><li><a href=\"#i-2\">\u578b\u4ed8\u3051\u306e\u9055\u3044<\/a><\/li><li><a href=\"#i-3\">\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u6709\u7121<\/a><\/li><\/ul><\/li><li><a href=\"#TypeScript-3\">TypeScript\u306e\u30e1\u30ea\u30c3\u30c8<\/a><ul><li><a href=\"#i-4\">\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/a><\/li><li><a href=\"#i-5\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a<\/a><\/li><\/ul><\/li><li><a href=\"#TypeScript-4\">TypeScript\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/a><\/li><li><a href=\"#TypeScriptJavaScript-2\">TypeScript\u3068JavaScript\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u95a2\u4fc2\u6027<\/a><ul><li><a href=\"#AngularJS\">AngularJS<\/a><\/li><li><a href=\"#Vuejs\">Vue.js<\/a><\/li><li><a href=\"#React\">React<\/a><\/li><\/ul><\/li><li><a href=\"#TypeScript-5\">TypeScript\u306e\u5c06\u6765\u6027\u3068\u306f<\/a><\/li><li><a href=\"#i-6\">\u307e\u3068\u3081<\/a><\/li><\/ul><\/div>\n<h2><span id=\"TypeScript\">TypeScript\u3068\u306f\uff1f<\/span><\/h2>\n\n\n\n<p>TypeScript\u3068\u306f\u30012012\u5e74\u306b\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306b\u958b\u767a\u3055\u308c\u305f\u8a00\u8a9e\u3067\u3059\u3002JavaScript\u3092\u62e1\u5f35\u3057\u3066\u4f5c\u3089\u308c\u305f\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3059\u3002JavaScript\u304c\u6301\u3064\u6a5f\u80fd\u3092\u7dad\u6301\u3057\u3064\u3064\u3001\u8ffd\u52a0\u306e\u6a5f\u80fd\u3092\u642d\u8f09\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>JavaScript\u306f\u3001Netscape\u3000Navigator\u3067\u52d5\u4f5c\u3059\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u3068\u3057\u3066\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002\u5f53\u6642\u306fHTML\u306e\u88dc\u52a9\u7684\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3057\u304b\u8003\u3048\u3089\u308c\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u30012000\u5e74\u4ee3\u306b\u5165\u308a\u3001JavaScript\u3067\u3082Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u4f5c\u308c\u308b\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001JavaScript\u3067\u306f\u578b\u5b9a\u7fa9\u304c\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30b3\u30fc\u30c9\u306b\u5909\u66f4\u3092\u52a0\u3048\u305f\u969b\u306e\u5f71\u97ff\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u691c\u8a3c\u3059\u308b\u306e\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3001\u958b\u767a\u306e\u30b9\u30b1\u30fc\u30eb\u6027\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u3001TypeScript\u304c\u767b\u5834\u3057\u307e\u3057\u305f\u3002<br>TypeScript\u3067\u306f\u3001\u578b\u5b9a\u7fa9\u304c\u3067\u304d\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u958b\u767a\u8005\u306f\u5b89\u5fc3\u3057\u3066\u30b3\u30fc\u30c9\u5909\u66f4\u3092\u52a0\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u4f5c\u3055\u305b\u305a\u306b\u4e0d\u5177\u5408\u304c\u306a\u3044\u304b\u3092\u672a\u7136\u306b\u691c\u77e5\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/www.typescriptlang.org\/\" target=\"_blank\" rel=\"noreferrer noopener\" title=\"https:\/\/www.typescriptlang.org\/\">Microsoft\u300c<meta charset=\"utf-8\">TypeScript\u300d<\/a><\/p>\n\n\n\n<h2><span id=\"TypeScript-2\">TypeScript\u306e\u7279\u5fb4\u30fb\u5f37\u307f<\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" src=\"https:\/\/www.java-career.com\/column\/wp-content\/uploads\/2022\/05\/216690453-1024x512.jpeg\" alt=\"TypeScript\u306e\u7279\u5fb4\u3084\u5f37\u307f\u3068\u306f\" class=\"wp-image-1727\" width=\"768\" height=\"384\"\/><\/figure><\/div>\n\n\n\n<h3><span id=\"i\">\u578b\u5b9a\u7fa9\u304c\u3067\u304d\u308b<\/span><\/h3>\n\n\n\n<p>TypeScript\u306e\u6700\u5927\u306e\u7279\u5fb4\u306f\u3001\u9759\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u3067\u3042\u308b\u3053\u3068\u3067\u3059\u3002\u9759\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u3068\u306f\u3001\u5909\u6570\u3084\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u306b\u578b\u3092\u6307\u5b9a\u3067\u304d\u308b\u8a00\u8a9e\u306e\u3053\u3068\u3067\u3059\u3002JavaScript\u306f\u3001\u52d5\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u9759\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u306f\u3001\u5909\u6570\u3084\u623b\u308a\u5024\u306b\u6307\u5b9a\u5916\u306e\u30c7\u30fc\u30bf\u304c\u5165\u308b\u3088\u3046\u306a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u3057\u305f\u5834\u5408\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u5b9f\u969b\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7a3c\u50cd\u3055\u305b\u308b\u524d\u306b\u30d0\u30b0\u306e\u5b58\u5728\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3><span id=\"JavaScript\">JavaScript\u3068\u306e\u4e92\u63db\u6027\u304c\u3042\u308b<\/span><\/h3>\n\n\n\n<p>TypeScript\u306f\u3001AltJS\u306e1\u3064\u3067\u3059\u3002AltJS\u3068\u306f\u3001Alternative JavaScript\u306e\u7565\u79f0\u3067\u3001\u300cJS\u306e\u4ee3\u308f\u308a\u306b\u306a\u308b\u3082\u306e\u300d\u3068\u3044\u3046\u610f\u5473\u3092\u8fbc\u3081\u3089\u308c\u305f\u9020\u8a9e\u3067\u3059\u3002AltJS\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u3068\u3001JavaScript\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>JavaScript\u306f\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089Web\u30c7\u30b6\u30a4\u30ca\u30fc\u307e\u3067\u5e45\u5e83\u3044IT\u696d\u754c\u306e\u958b\u767a\u8005\u304c\u5229\u7528\u3057\u307e\u3059\u3002\u8fd1\u5e74\u3067\u306f\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u306e1\u3064\u3068\u3057\u3066react\u3001React\u3092\u6d3b\u7528\u3057\u305fReact Native\u306a\u3069\u3055\u307e\u3056\u307e\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3084\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u304c\u767b\u5834\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>TypeScript\u306fAltJS\u306e\uff11\u3064\u3067\u3042\u308b\u305f\u3081\u3001JavaScript\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u7fa4\u3092\u542b\u3081\u3066100%\u306e\u4e92\u63db\u6027\u3092\u6301\u3061\u307e\u3059\u3002\u305d\u3057\u3066\u3001TypeScript\u306e\u57fa\u672c\u7684\u306a\u69cb\u6587\u306fJavaScript\u3092\u8e0f\u8972\u3057\u3066\u3044\u308b\u305f\u3081\u3001JavaScript\u3092\u7fd2\u5f97\u3057\u3066\u3044\u308b\u4eba\u3067\u3042\u308c\u3070\u6bd4\u8f03\u7684\u77ed\u671f\u9593\u3067\u7fd2\u5f97\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2><span id=\"TypeScriptJavaScript\">TypeScript\u3068JavaScript\u3068\u306e\u9055\u3044<\/span><\/h2>\n\n\n\n<h3><span id=\"i-2\">\u578b\u4ed8\u3051\u306e\u9055\u3044<\/span><\/h3>\n\n\n\n<p>\u6700\u5927\u306e\u9055\u3044\u306f\u3001\u578b\u4ed8\u3051\u306e\u9055\u3044\u3067\u3059\u3002TypeScript\u306f\u9759\u7684\u578b\u4ed8\u3051\u3067JavaScript\u306f\u52d5\u7684\u578b\u4ed8\u3051\u306e\u8a00\u8a9e\u3067\u3059\u3002<br>\u52d5\u7684\u578b\u4ed8\u3051\u3068\u306f\u3001\u578b\u306e\u5ba3\u8a00\u304c\u4e0d\u8981\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u5074\u304c\u81ea\u52d5\u7684\u306b\u578b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3059\u308b\u307e\u3067\u30a8\u30e9\u30fc\u306e\u5b58\u5728\u306b\u6c17\u304c\u4ed8\u304d\u306b\u304f\u304f\u3001\u4e0d\u5177\u5408\u304c\u8d77\u3053\u308a\u3084\u3059\u3044\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002JavaScript\u306e\u4ed6\u306b\u3001Python\u3084Ruby\u306a\u3069\u304c\u4ee3\u8868\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u3001TypeScript\u306f\u3042\u3089\u304b\u3058\u3081\u5909\u6570\u306e\u578b\u3092\u5b9a\u7fa9\u3059\u308b\u9759\u7684\u578b\u4ed8\u3051\u3092\u63a1\u7528\u3057\u307e\u3057\u305f\u3002<br>\u9759\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u6642\u70b9\u3067\u30a8\u30e9\u30fc\u304c\u308f\u304b\u308b\u3053\u3068\u3084\u3001\u53ef\u8aad\u6027\u306e\u9ad8\u3055\u3001\u5927\u4eba\u6570\u3067\u306e\u958b\u767a\u306b\u5411\u3044\u3066\u3044\u308b\u7279\u5fb4\u3092\u6301\u3061\u307e\u3059\u3002TypeScript\u306e\u4ed6\u306b\u3001C#\u3001Java\u306a\u3069\u304c\u9759\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u3067\u3059\u3002<\/p>\n\n\n\n<h3><span id=\"i-3\">\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u6709\u7121<\/span><\/h3>\n\n\n\n<p>TypeScript\u306b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u3042\u308a\u307e\u3059\u304c\u3001JavaScript\u306b\u306f\u3042\u308a\u307e\u305b\u3093\u3002<br>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u306f\u3001\u51e6\u7406\u306f\u6301\u3061\u307e\u305b\u3093\u304c\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u5bfe\u3057\u3066\u72ec\u81ea\u306e\u30eb\u30fc\u30eb\u3092\u4ed8\u4e0e\u3067\u304d\u308b\u6a5f\u80fd\u3067\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u578b\u3084\u30af\u30e9\u30b9\u3060\u3051\u3067\u306f\u518d\u73fe\u3067\u304d\u306a\u3044\u51e6\u7406\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u7ba1\u7406\u3059\u308b\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u969b\u306b\u3001\u300c\u30e6\u30fc\u30b6\u30fc\u540d\u300d\u3068\u300c\u5e74\u9f62\u300d\u3060\u3051\u3092\u5fc5\u305a\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u6301\u3063\u3066\u304a\u304d\u305f\u3044\u3068\u3057\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><meta charset=\"utf-8\"><meta charset=\"utf-8\">interface Member {\nname:string;\nage:number;\n}<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u4f5c\u6210\u3057\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u3001\u30af\u30e9\u30b9\u4f5c\u6210\u6642\u306b\u300cimplements\u300d\u306b\u7d9a\u3051\u3066\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><meta charset=\"utf-8\"><meta charset=\"utf-8\">Class User implements Member {\nname:string;\nage:number;\n\n<meta charset=\"utf-8\">area:string; \ntell:string;\n}<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u5b9a\u7fa9\u3057\u3066\u304a\u3051\u3070\u3001\u3053\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u7528\u3059\u308b\u30af\u30e9\u30b9\u306f\u305d\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5fc5\u305a\u5b9f\u88c5\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u3068\u3044\u3046\u5177\u5408\u306b\u3001\u30af\u30e9\u30b9\u306e\u632f\u308b\u821e\u3044\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<!-- 202307 CTA -->\n<div class=\"box-bridge-cta\">\n    <div class=\"box-bridge-link\">\n        <a href=\"https:\/\/www.java-career.com\/regist\/\" target=\"_blank\" rel=\"noopener\">\n        <img class=\"pc\" src=\"\/column\/wp-content\/uploads\/2023\/07\/bridge-cta.jpg\" alt=\"IT\u696d\u754c\u3078\u306e\u8ee2\u8077\u3092\u8003\u3048\u308bJava\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u305f\u3081\u306b\u7279\u5316\u3057\u305f\u6c42\u4eba\u30b5\u30a4\u30c8\u300cJava\u30ad\u30e3\u30ea\u300d\">\n        <img class=\"sp\" src=\"\/column\/wp-content\/uploads\/2023\/07\/sp-bridge-cta.jpg\" alt=\"IT\u696d\u754c\u3078\u306e\u8ee2\u8077\u3092\u8003\u3048\u308bJava\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u305f\u3081\u306b\u7279\u5316\u3057\u305f\u6c42\u4eba\u30b5\u30a4\u30c8\u300cJava\u30ad\u30e3\u30ea\u300d\u300d\"><\/a>\n    <\/div>\n    <ul>\n        <li><a href=\"https:\/\/www.java-career.com\/static\/about.html\" target=\"_blank\" rel=\"noopener\">Java\u30ad\u30e3\u30ea\u3068\u306f<\/a><\/li>\n        <li><a href=\"https:\/\/www.java-career.com\/regist\/\" target=\"_blank\" rel=\"noopener\">\u4f1a\u54e1\u767b\u9332\u306f\u3053\u3061\u3089<\/a><\/li>\n    <\/ul>\n<\/div>\n<!-- 202307 CTA\u3053\u3053\u307e\u3067 -->\n\n\n\n<h2><span id=\"TypeScript-3\">TypeScript\u306e\u30e1\u30ea\u30c3\u30c8<\/span><\/h2>\n\n\n\n<h3><span id=\"i-4\">\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/span><\/h3>\n\n\n\n<p>TypeScript\u306e\u7279\u5fb4\u3067\u3042\u308b\u9759\u7684\u578b\u4ed8\u3051\u306e\u5f71\u97ff\u3067\u3001\u30a8\u30e9\u30fc\u3084\u30d0\u30b0\u3092\u672a\u7136\u306b\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u3001\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<br>TypeScript\u306f\u3001\u95a2\u6570\u306e\u5f15\u6570\u306b\u4f55\u3092\u4ee3\u5165\u3059\u3079\u304d\u304b\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3069\u306e\u3088\u3046\u306a\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u304c\u660e\u78ba\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30c7\u30fc\u30bf\u578b\u3068\u5024\u304c\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306b\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u30ea\u30ea\u30fc\u30b9\u524d\u306b\u30a8\u30e9\u30fc\u3084\u30d0\u30b0\u3092\u672a\u7136\u306b\u9632\u6b62\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>JavaScript\u3067\u306f\u3001\u300cundefined\u300d\u304c\u767a\u751f\u3057\u3084\u3059\u304f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u5b9f\u884c\u306e\u969b\u306e\u30a8\u30e9\u30fc\u306e\u8981\u56e0\u306b\u3088\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3044\u3046\u610f\u5473\u3092\u6301\u3061\u307e\u3059\u3002\u4e00\u65b9TypeScript\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30e9\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067null\u3084undefined\u306e\u53ef\u80fd\u6027\u304c\u3042\u308b\u5909\u6570\u3092\u78ba\u8a8d\u3057\u3001\u554f\u984c\u3092\u767a\u898b\u3057\u3084\u3059\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3><span id=\"i-5\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a<\/span><\/h3>\n\n\n\n<p>TypeScript\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<br>\u4f8b\u3048\u3070\u3001\u4e8c\u3064\u306e\u6570\u5b57\u3092\u639b\u3051\u7b97\u3059\u308b\u95a2\u6570\u3092\u4f5c\u6210\u3059\u308b\u5834\u5408\u3001JavaScript\u3067\u306f\u5f15\u6570\u306e\u578b\u3092\u78ba\u5b9a\u3057\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u4f8b\u5916\u51e6\u7406\u3092\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><meta charset=\"utf-8\">const multinm = (number1, number2) =&gt; {\nif(typeof number1 !=='number' || typeof number2 !=='number'){\nreturn 0;\n}\nReturn number1 * number2;\n}<\/code><\/pre>\n\n\n\n<p>\u4e00\u65b9\u3067\u3001TypeScript\u3067\u306f\u3001\u5f15\u6570\u3068\u623b\u308a\u5024\u306e\u578b\u3092\u3042\u3089\u304b\u3058\u3081\u6307\u5b9a\u3067\u304d\u308b\u305f\u3081\u3001\u4f8b\u5916\u51e6\u7406\u306e\u8a18\u8ff0\u304c\u4e0d\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><meta charset=\"utf-8\">const multinm = (number1: number, number2: number): number =&gt; (\nnumber1 * number2\n);<\/code><\/pre>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u3063\u3066\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2><span id=\"TypeScript-4\">TypeScript\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/span><\/h2>\n\n\n\n<p>TypeScript\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u60c5\u5831\u304c\u591a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u3001TypeScript\u304c\u6bd4\u8f03\u7684\u65b0\u3057\u3044\u8a00\u8a9e\u3060\u304b\u3089\u3067\u3059\u3002\u307e\u305f\u3001\u4ed6\u306e\u8a00\u8a9e\u3068\u6bd4\u8f03\u3059\u308b\u3068\u65e5\u672c\u8a9e\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3082\u5c11\u306a\u3044\u3067\u3059\u3002Amazon\u3067\u300cJavaScript\u3000\u5165\u9580\u300d\u3067\u691c\u7d22\u3059\u308b\u30681,000\u4ef6\u4ee5\u4e0a\u30d2\u30c3\u30c8\u3059\u308b\u306e\u306b\u5bfe\u3057\u3066\u3001TypeScript\u306f\u3001188\u4ef6\u306e\u307f\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001TypeScript\u3092\u4f7f\u7528\u3057\u3066\u958b\u767a\u3092\u9032\u3081\u3066\u3044\u304f\u3046\u3061\u306b\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u969b\u306b\u3001\u30a8\u30e9\u30fc\u89e3\u6c7a\u6cd5\u3092\u8abf\u3079\u3066\u3082\u60c5\u5831\u304c\u5c11\u306a\u3044\u3068\u554f\u984c\u89e3\u6c7a\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u521d\u5fc3\u8005\u306e\u65b9\u306f\u3001\u307e\u305a\u306fJavaScript\u304b\u3089\u52c9\u5f37\u3059\u308b\u3068\u30b9\u30e0\u30fc\u30ba\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2><span id=\"TypeScriptJavaScript-2\">TypeScript\u3068JavaScript\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u95a2\u4fc2\u6027<\/span><\/h2>\n\n\n\n<p>TypeScript\u306fJavaScript\u3068\u306e\u4e92\u63db\u6027\u304c\u3042\u308b\u305f\u3081\u3001JavaScript\u5411\u3051\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3><span id=\"AngularJS\">AngularJS<\/span><\/h3>\n\n\n\n<p>Angular JS\u306f\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3059\u3002<br>JavaScript\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u4e2d\u3067\u306f\u6700\u3082\u6709\u540d\u3068\u3044\u3063\u3066\u3082\u904e\u8a00\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002Angular 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href=\"https:\/\/www.java-career.com\/column\/tech\/what-is-vuejs\/\" target=\"_blank\" rel=\"noreferrer noopener\" title=\"https:\/\/www.java-career.com\/column\/tech\/what-is-vuejs\/\">Vue.js\u3068\u306f\uff1fReact\u3084Angular\u3068\u306e\u9055\u3044\u307e\u3067\u5fb9\u5e95\u89e3\u8aac\uff01<\/a>\u300d\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3><span 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id=\"i-6\">\u307e\u3068\u3081<\/span><\/h2>\n\n\n\n<p>\u3053\u308c\u307e\u3067\u306e\u8a18\u4e8b\u3067\u3001TypeScript\u304cJavaScript\u306e\u4e0a\u4f4d\u4e92\u63db\u3068\u3044\u3046\u30dd\u30b8\u30b7\u30e7\u30f3\u3067\u3042\u308b\u8a00\u8a9e\u3060\u3068\u3044\u3046\u3053\u3068\u306f\u3054\u7406\u89e3\u3044\u305f\u3060\u3051\u305f\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u73fe\u72b6\u3067\u306f\u3001JavaScript\u306e\u65b9\u304c\u4eba\u6c17\u3082\u9ad8\u304f\u3001\u6c42\u4eba\u6570\u3082\u5727\u5012\u7684\u306bJavaScript\u306e\u65b9\u304c\u591a\u3044\u306e\u3067\u3059\u304c\u3001TypeScript\u3092\u7fd2\u5f97\u3057\u3066\u304a\u3044\u3066\u640d\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u30d5\u30ed\u30f3\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u6c42\u4eba\u306f\u6025\u5897\u3057\u3066\u304a\u308a\u3001\u4eba\u624b\u4e0d\u8db3\u3067\u56f0\u3063\u3066\u3044\u308b\u4f01\u696d\u3082\u5897\u3048\u3066\u3044\u307e\u3059\u3002<br>\u6280\u8853\u7684\u306a\u9078\u629e\u80a2\u3092\u5897\u3084\u3059\u3053\u306f\u3001\u3042\u306a\u305f\u306e\u5c06\u6765\u6027\u3092\u5e83\u3052\u3066\u304f\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<!-- 202307 CTA -->\n<div class=\"box-bridge-cta\">\n    <div class=\"box-bridge-link\">\n        <a href=\"https:\/\/www.java-career.com\/regist\/\" target=\"_blank\" rel=\"noopener\">\n        <img class=\"pc\" src=\"\/column\/wp-content\/uploads\/2023\/07\/bridge-cta.jpg\" alt=\"IT\u696d\u754c\u3078\u306e\u8ee2\u8077\u3092\u8003\u3048\u308bJava\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u305f\u3081\u306b\u7279\u5316\u3057\u305f\u6c42\u4eba\u30b5\u30a4\u30c8\u300cJava\u30ad\u30e3\u30ea\u300d\">\n        <img class=\"sp\" src=\"\/column\/wp-content\/uploads\/2023\/07\/sp-bridge-cta.jpg\" alt=\"IT\u696d\u754c\u3078\u306e\u8ee2\u8077\u3092\u8003\u3048\u308bJava\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u305f\u3081\u306b\u7279\u5316\u3057\u305f\u6c42\u4eba\u30b5\u30a4\u30c8\u300cJava\u30ad\u30e3\u30ea\u300d\u300d\"><\/a>\n    <\/div>\n    <ul>\n        <li><a href=\"https:\/\/www.java-career.com\/static\/about.html\" target=\"_blank\" rel=\"noopener\">Java\u30ad\u30e3\u30ea\u3068\u306f<\/a><\/li>\n        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