{"id":273,"date":"2023-10-04T19:43:06","date_gmt":"2023-10-04T10:43:06","guid":{"rendered":"https:\/\/m-potion.com\/?p=273"},"modified":"2024-04-09T11:07:15","modified_gmt":"2024-04-09T02:07:15","slug":"javascript-%eb%8f%99%ec%a0%81%ec%9c%bc%eb%a1%9c-%eb%b3%80%ed%95%98%eb%8a%94-%eb%ac%b8%ec%9e%90%eb%a1%9c-%ed%95%a8%ec%88%98-%ed%98%b8%ec%b6%9c%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/m-potion.com\/information\/javascript-%eb%8f%99%ec%a0%81%ec%9c%bc%eb%a1%9c-%eb%b3%80%ed%95%98%eb%8a%94-%eb%ac%b8%ec%9e%90%eb%a1%9c-%ed%95%a8%ec%88%98-%ed%98%b8%ec%b6%9c%ed%95%98%ea%b8%b0","title":{"rendered":"[JavaScript] \ub3d9\uc801\uc73c\ub85c \ubcc0\ud558\ub294 \ubb38\uc790\ub85c \ud568\uc218 \ud638\ucd9c\ud558\uae30"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_68_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/m-potion.com\/information\/javascript-%eb%8f%99%ec%a0%81%ec%9c%bc%eb%a1%9c-%eb%b3%80%ed%95%98%eb%8a%94-%eb%ac%b8%ec%9e%90%eb%a1%9c-%ed%95%a8%ec%88%98-%ed%98%b8%ec%b6%9c%ed%95%98%ea%b8%b0\/#%EC%83%81%ED%99%A9%EC%97%90_%EB%94%B0%EB%9D%BC%EC%84%9C_%ED%98%B8%EC%B6%9C%ED%95%98%EB%8A%94_%ED%95%A8%EC%88%98%EA%B0%80_%EC%9E%88%EB%8B%A4\" title=\"\uc0c1\ud669\uc5d0 \ub530\ub77c\uc11c \ud638\ucd9c\ud558\ub294 \ud568\uc218\uac00 \uc788\ub2e4.\">\uc0c1\ud669\uc5d0 \ub530\ub77c\uc11c \ud638\ucd9c\ud558\ub294 \ud568\uc218\uac00 \uc788\ub2e4.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/m-potion.com\/information\/javascript-%eb%8f%99%ec%a0%81%ec%9c%bc%eb%a1%9c-%eb%b3%80%ed%95%98%eb%8a%94-%eb%ac%b8%ec%9e%90%eb%a1%9c-%ed%95%a8%ec%88%98-%ed%98%b8%ec%b6%9c%ed%95%98%ea%b8%b0\/#%EC%96%B8%EC%A0%9C_%EC%82%AC%EC%9A%A9%ED%95%98%EB%8A%94%EA%B0%80\" title=\"\uc5b8\uc81c \uc0ac\uc6a9\ud558\ub294\uac00?\">\uc5b8\uc81c \uc0ac\uc6a9\ud558\ub294\uac00?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/m-potion.com\/information\/javascript-%eb%8f%99%ec%a0%81%ec%9c%bc%eb%a1%9c-%eb%b3%80%ed%95%98%eb%8a%94-%eb%ac%b8%ec%9e%90%eb%a1%9c-%ed%95%a8%ec%88%98-%ed%98%b8%ec%b6%9c%ed%95%98%ea%b8%b0\/#%ED%95%A8%EC%88%98_%EB%A7%8C%EB%93%A4%EA%B8%B0\" title=\"\ud568\uc218 \ub9cc\ub4e4\uae30\">\ud568\uc218 \ub9cc\ub4e4\uae30<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/m-potion.com\/information\/javascript-%eb%8f%99%ec%a0%81%ec%9c%bc%eb%a1%9c-%eb%b3%80%ed%95%98%eb%8a%94-%eb%ac%b8%ec%9e%90%eb%a1%9c-%ed%95%a8%ec%88%98-%ed%98%b8%ec%b6%9c%ed%95%98%ea%b8%b0\/#%EB%A7%8C%EB%93%A0_%ED%95%A8%EC%88%98%EB%A5%BC_%ED%85%8D%EC%8A%A4%ED%8A%B8%EB%A1%9C_%EC%8B%A4%ED%96%89%ED%95%98%EA%B8%B0\" title=\"\ub9cc\ub4e0 \ud568\uc218\ub97c \ud14d\uc2a4\ud2b8\ub85c \uc2e4\ud589\ud558\uae30\">\ub9cc\ub4e0 \ud568\uc218\ub97c \ud14d\uc2a4\ud2b8\ub85c \uc2e4\ud589\ud558\uae30<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%EC%83%81%ED%99%A9%EC%97%90_%EB%94%B0%EB%9D%BC%EC%84%9C_%ED%98%B8%EC%B6%9C%ED%95%98%EB%8A%94_%ED%95%A8%EC%88%98%EA%B0%80_%EC%9E%88%EB%8B%A4\"><\/span>\uc0c1\ud669\uc5d0 \ub530\ub77c\uc11c \ud638\ucd9c\ud558\ub294 \ud568\uc218\uac00 \uc788\ub2e4.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\uc0c1\ud669\uc5d0 \ub530\ub77c \ub3d9\uc801\uc73c\ub85c \ud638\ucd9c\ud558\ub294 \ud568\uc218\uac00 \uad49\uc7a5\ud788 \ub2e4\uc591\ud558\uace0 \ub9ce\ub2e4\uba74 if\ubb38\uc774\ub098 case\ubb38\ubcf4\ub2e4\ub294 &#8216;\ubb38\uc790\uc5f4&#8217;\uc744 \ud1b5\ud574\uc11c \ud638\ucd9c\ud558\ub294 \ubc29\ubc95\uc774 \uc788\uc9c0 \uc54a\uc744\uae4c? \ud558\ub2e4\uac00 \ucc3e\uc558\ub358 \uac83\uc778\ub370, \uacf5\uc720 \ud574\ubcf8\ub2e4. <\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%EC%96%B8%EC%A0%9C_%EC%82%AC%EC%9A%A9%ED%95%98%EB%8A%94%EA%B0%80\"><\/span>\uc5b8\uc81c \uc0ac\uc6a9\ud558\ub294\uac00?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\uc5b8\uc81c \uc0ac\uc6a9\ud558\ub294\uac00 ? \ub9d0 \uadf8\ub300\ub85c String \ubb38\uc790 \uadf8\ub300\ub85c \ud568\uc218\ub97c \ud638\ucd9c\ud560 \ub54c \uc0ac\uc6a9\ud588\uc5c8\ub2e4.<\/p>\n\n\n\n<p>\ub3d9\uc801\uc778 \ud14d\uc2a4\ud2b8\ub85c \ud568\uc218\ub97c \ud638\ucd9c \ud558\ub294 \ub54c\uac00 \uc5b8\uc81c\uc600\ub0d0\uba74, Select Option \ud0dc\uadf8\ub97c \uc774\uc6a9\ud574\uc11c, \uc120\ud0dd\ud55c \uac83\uc5d0 \ub300\ud55c \uc18d\uc131 \uac12\uc5d0 \ub0b4\uac00 \ud568\uc218\ub97c \ub450\uc5c8\ub2e4\uace0 \uac00\uc815\ud558\uc790.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;select onchange=\"onChange(this)\">\r\n  &lt;option value=\"1\">\uc11c\uc6b8&lt;\/option>\r\n  &lt;option value=\"2\">\uacbd\uae30\ub3c4&lt;\/option>\r\n  &lt;option value=\"3\">\uc778\ucc9c&lt;\/option>\r\n&lt;\/select><\/code><\/pre>\n\n\n\n<p>\uc704\uc5d0 \uc120\ud0dd\ub41c \uac12\uc5d0 \ub530\ub77c\uc11c \ud638\ucd9c\ud574\uc57c\ud558\ub294 \ud568\uc218\uac00 \ub2e4\ub974\ub2e4.<\/p>\n\n\n\n<p>\uc11c\uc6b8 \uc120\ud0dd \uc2dc Seoul() <br>\uacbd\uae30 \uc120\ud0dd \uc2dc Gyeonggi()<br>\uc778\ucc9c \uc120\ud0dd \uc2dc Incheon()<\/p>\n\n\n\n<p>\uc774\ub807\uac8c \ub9d0\uc774\ub2e4. \uadf8\ub7ec\uba74 onChange \uc774\ubca4\ud2b8\ub97c \ud0dc\uc6cc \uac01\uac01 value \uac12\uc5d0 \ub530\ub77c\uc11c \ud568\uc218\ub97c \ub2e4 \ub2e4\ub974\uac8c \ud560 \uac83\uc778\uac00? <\/p>\n\n\n\n<p>\uc774\ub807\uac8c?<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const onChange = (target) => {\r\n  const value = target.value\r\n\r\n  if(value === 1) {\r\n    seoul();\r\n  } else if(value === 2) {\r\n    gyeonggi()\r\n  } else if(value === 3) {\r\n    incheon()\r\n  } ...\r\n}<\/code><\/pre>\n\n\n\n<p>\ubb3c\ub860, \uac12\uc774 3\uac1c\uc77c \uacbd\uc6b0\uc5d0\ub294 \uc704\uac00 \uac00\ub3c5\uc131\uc774 \ub354 \uc88b\uc744 \uc218 \uc788\ub2e4. \ud558\uc9c0\ub9cc, \ub098\ub294 \uc5ec\uae30\uc11c \uac01 option\uc5d0 \uc18d\uc131\uac12\uc744 \uc8fc\uace0 \uadf8 \ud14d\uc2a4\ud2b8\ub85c \uac01\uac01\uc758 \ud568\uc218\ub97c \ud638\ucd9c\ud558\uac8c \ud558\uc600\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const onChange = (target) => {\n  target.value() \/\/ \ud568\uc218 \ud638\ucd9c! \uc774\ub807\uac8c \ud558\uba74 \uc548\ub41c\ub2e4 ! \uc774\uac74 \ud558\ub098\uc758 \uc608\uc2dc\uc77c\ubfd0, \n}<\/code><\/pre>\n\n\n\n<p>\uac01\uac01\uc758 \ud568\uc218\ub97c \ud638\ucd9c\ud558\uac8c\ub054 \ud558\uba74 \uc800\ub807\uac8c \ud55c\uc904\ub9cc\uc73c\ub85c \ub05d\uc774 \ub09c\ub2e4. \ud83d\ude00<\/p>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\uadf8\ub7fc \uc774\uc81c \ub9cc\ub4e4\uc5b4\ubcf4\uc790!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%ED%95%A8%EC%88%98_%EB%A7%8C%EB%93%A4%EA%B8%B0\"><\/span>\ud568\uc218 \ub9cc\ub4e4\uae30<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\uc784\uc2dc\ub85c \ud14c\uc2a4\ud2b8\ud560 \ud568\uc218\ub97c \ub9cc\ub4e0\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function test() { \n  console.log('test');\n}\n\narrowTest = () =&gt; {\n  console.log('ArrowTest');\n}<\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%EB%A7%8C%EB%93%A0_%ED%95%A8%EC%88%98%EB%A5%BC_%ED%85%8D%EC%8A%A4%ED%8A%B8%EB%A1%9C_%EC%8B%A4%ED%96%89%ED%95%98%EA%B8%B0\"><\/span>\ub9cc\ub4e0 \ud568\uc218\ub97c \ud14d\uc2a4\ud2b8\ub85c \uc2e4\ud589\ud558\uae30<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\uc704\uc5d0 \ub9cc\ub4e0 \ud568\uc218\ub97c \uc2e4\ud589\ud558\ub294 \uac83\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n<p>\uc5c4\uccad \uac04\ub2e8\ud558\ub2e4. <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>this&#91;'test']()\nthis&#91;'arrowTest']()<\/code><\/pre>\n\n\n\n<p>\uc8fc\uc758\ud560 \uac83\uc740 this\uc5d0 \ub300\ud55c \uac1c\ub150\uc744 \uc798 \uc54c\uace0 \uc788\uc5b4\uc57c \uc0ac\uc6a9 \uc2dc \ubb38\uc81c\uac00 \ub418\uc9c0 \uc54a\uc744 \uac83\uc774\ub2e4. <\/p>\n\n\n\n<p>this\ub97c \uc0c1\uc18d \ubc1b\ub294\uc9c0 \uc548\ubc1b\ub294\uc9c0\uc5d0 \ub530\ub77c\uc11c \ub2ec\ub77c\uc9c8\ud14c\ub2c8 \ub9d0\uc774\ub2e4. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc0c1\ud669\uc5d0 \ub530\ub77c\uc11c \ud638\ucd9c\ud558\ub294 \ud568\uc218\uac00 \uc788\ub2e4. \uc0c1\ud669\uc5d0 \ub530\ub77c \ub3d9\uc801\uc73c\ub85c \ud638\ucd9c\ud558\ub294 \ud568\uc218\uac00 \uad49\uc7a5\ud788 \ub2e4\uc591\ud558\uace0 \ub9ce\ub2e4\uba74 if\ubb38\uc774\ub098 case\ubb38\ubcf4\ub2e4\ub294 &#8216;\ubb38\uc790\uc5f4&#8217;\uc744 \ud1b5\ud574\uc11c \ud638\ucd9c\ud558\ub294 \ubc29\ubc95\uc774 \uc788\uc9c0 \uc54a\uc744\uae4c? \ud558\ub2e4\uac00 \ucc3e\uc558\ub358 \uac83\uc778\ub370, \uacf5\uc720 \ud574\ubcf8\ub2e4. \uc5b8\uc81c \uc0ac\uc6a9\ud558\ub294\uac00? \uc5b8\uc81c \uc0ac\uc6a9\ud558\ub294\uac00 ? \ub9d0 \uadf8\ub300\ub85c String \ubb38\uc790 \uadf8\ub300\ub85c \ud568\uc218\ub97c \ud638\ucd9c\ud560 \ub54c \uc0ac\uc6a9\ud588\uc5c8\ub2e4. \ub3d9\uc801\uc778 \ud14d\uc2a4\ud2b8\ub85c \ud568\uc218\ub97c \ud638\ucd9c \ud558\ub294 \ub54c\uac00 \uc5b8\uc81c\uc600\ub0d0\uba74, Select Option \ud0dc\uadf8\ub97c \uc774\uc6a9\ud574\uc11c, \uc120\ud0dd\ud55c \uac83\uc5d0 \ub300\ud55c \uc18d\uc131 &#8230; <a title=\"[JavaScript] \ub3d9\uc801\uc73c\ub85c \ubcc0\ud558\ub294 \ubb38\uc790\ub85c \ud568\uc218 \ud638\ucd9c\ud558\uae30\" class=\"read-more\" href=\"https:\/\/m-potion.com\/information\/javascript-%eb%8f%99%ec%a0%81%ec%9c%bc%eb%a1%9c-%eb%b3%80%ed%95%98%eb%8a%94-%eb%ac%b8%ec%9e%90%eb%a1%9c-%ed%95%a8%ec%88%98-%ed%98%b8%ec%b6%9c%ed%95%98%ea%b8%b0\" aria-label=\"Read more about [JavaScript] \ub3d9\uc801\uc73c\ub85c \ubcc0\ud558\ub294 \ubb38\uc790\ub85c \ud568\uc218 \ud638\ucd9c\ud558\uae30\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-273","post","type-post","status-publish","format-standard","hentry","category-information"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[JavaScript] \ub3d9\uc801\uc73c\ub85c \ubcc0\ud558\ub294 \ubb38\uc790\ub85c \ud568\uc218 \ud638\ucd9c\ud558\uae30 - \uace0\uc6b4\uadf8\ubbf8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/m-potion.com\/information\/javascript-\ub3d9\uc801\uc73c\ub85c-\ubcc0\ud558\ub294-\ubb38\uc790\ub85c-\ud568\uc218-\ud638\ucd9c\ud558\uae30\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[JavaScript] \ub3d9\uc801\uc73c\ub85c \ubcc0\ud558\ub294 \ubb38\uc790\ub85c \ud568\uc218 \ud638\ucd9c\ud558\uae30 - \uace0\uc6b4\uadf8\ubbf8\" \/>\n<meta property=\"og:description\" content=\"\uc0c1\ud669\uc5d0 \ub530\ub77c\uc11c \ud638\ucd9c\ud558\ub294 \ud568\uc218\uac00 \uc788\ub2e4. \uc0c1\ud669\uc5d0 \ub530\ub77c \ub3d9\uc801\uc73c\ub85c \ud638\ucd9c\ud558\ub294 \ud568\uc218\uac00 \uad49\uc7a5\ud788 \ub2e4\uc591\ud558\uace0 \ub9ce\ub2e4\uba74 if\ubb38\uc774\ub098 case\ubb38\ubcf4\ub2e4\ub294 &#8216;\ubb38\uc790\uc5f4&#8217;\uc744 \ud1b5\ud574\uc11c \ud638\ucd9c\ud558\ub294 \ubc29\ubc95\uc774 \uc788\uc9c0 \uc54a\uc744\uae4c? \ud558\ub2e4\uac00 \ucc3e\uc558\ub358 \uac83\uc778\ub370, \uacf5\uc720 \ud574\ubcf8\ub2e4. \uc5b8\uc81c \uc0ac\uc6a9\ud558\ub294\uac00? \uc5b8\uc81c \uc0ac\uc6a9\ud558\ub294\uac00 ? \ub9d0 \uadf8\ub300\ub85c String \ubb38\uc790 \uadf8\ub300\ub85c \ud568\uc218\ub97c \ud638\ucd9c\ud560 \ub54c \uc0ac\uc6a9\ud588\uc5c8\ub2e4. \ub3d9\uc801\uc778 \ud14d\uc2a4\ud2b8\ub85c \ud568\uc218\ub97c \ud638\ucd9c \ud558\ub294 \ub54c\uac00 \uc5b8\uc81c\uc600\ub0d0\uba74, Select Option \ud0dc\uadf8\ub97c \uc774\uc6a9\ud574\uc11c, \uc120\ud0dd\ud55c \uac83\uc5d0 \ub300\ud55c \uc18d\uc131 ... 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