{"id":25520,"date":"2024-09-26T07:32:06","date_gmt":"2024-09-25T22:32:06","guid":{"rendered":"http:\/\/www.tyosuke20xx.com\/blog\/?p=25520"},"modified":"2024-09-26T07:32:09","modified_gmt":"2024-09-25T22:32:09","slug":"javascript-%e5%9b%9b%e8%a7%92%e3%82%92%e6%8f%8f%e7%94%bb","status":"publish","type":"post","link":"http:\/\/www.tyosuke20xx.com\/blog\/?p=25520","title":{"rendered":"Javascript \u56db\u89d2\u3092\u63cf\u753b"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>'use strict';\n\n{\n  function draw() {\n    const canvas = document.querySelector('canvas');\n    if (typeof canvas.getContext === 'undefined') {\n      return;\n    }\n    const ctx = canvas.getContext('2d');\n\n    \/\/ ctx.fillRect(50, 50, 50, 50);\n    ctx.strokeRect(50, 50, 50, 50);\n  }\n\n  draw();\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>body {\n  background: #222;\n}\n\ncanvas {\n  background: #fff;\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!DOCTYPE html>\n&lt;html lang=\"ja\">\n&lt;head>\n  &lt;meta charset=\"utf-8\">\n  &lt;title>My Canvas&lt;\/title>\n  &lt;link rel=\"stylesheet\" href=\"css\/styles.css\">\n&lt;\/head>\n&lt;body>\n  &lt;canvas width=\"600\" height=\"240\">\n    Canvas not supported.\n  &lt;\/canvas>\n\n  &lt;script src=\"js\/main.js\">&lt;\/script>\n&lt;\/body>\n&lt;\/html><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[78,4],"tags":[41,3],"class_list":["post-25520","post","type-post","status-publish","format-standard","hentry","category-javascript","category-programming","tag-javascript","tag-programming"],"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/25520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=25520"}],"version-history":[{"count":1,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/25520\/revisions"}],"predecessor-version":[{"id":25521,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/25520\/revisions\/25521"}],"wp:attachment":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25520"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}