{"id":1889,"date":"2021-03-08T17:16:22","date_gmt":"2021-03-08T08:16:22","guid":{"rendered":"http:\/\/wp.ultimai.org\/?p=1889"},"modified":"2022-02-27T12:19:38","modified_gmt":"2022-02-27T03:19:38","slug":"jquery-%e8%a6%81%e7%b4%a0%e3%82%92%e5%8f%96%e5%be%97-%e3%81%84%e3%82%8d%e3%81%84%e3%82%8d","status":"publish","type":"post","link":"https:\/\/wp.ultimai.org\/?p=1889","title":{"rendered":"jquery \u8981\u7d20\u3092\u53d6\u5f97 \u3044\u308d\u3044\u308d"},"content":{"rendered":"<h3>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u8981\u7d20\u6570\u306e\u30ab\u30a6\u30f3\u30c8<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\r\n[code]\r\n  let a = {de:234}\r\n  console.log( Object.keys(a).length)\r\n\r\n\/\/ a.length \u306fundefined \u306b\u306a\u308b\r\n[\/code]\r\n<\/pre>\n<h3>\u5909\u6570\u304c\u672a\u5b9a\u7fa9\u304b\u3069\u3046\u304b\u306e\u5224\u5b9a<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code>[code]\r\n                                                 \/\/ \u3042\u308a   \u306a\u3057\r\n    console.log(typeof session !== \"undefined\" );\/\/ true  false\r\n    console.log(typeof session === \"undefined\" );\/\/ false true\r\n \r\n[\/code]<\/code><\/pre>\n<h3>\u6307\u5b9a\u3057\u305f\u8981\u7d20\u672c\u4f53\u306e\u53d6\u5f97<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code>[code]\r\n   $('#youso').prop('outerHTML');\r\n [\/code]<\/code><\/pre>\n<h3>\u81ea\u5206\u306e\u89aa\u8981\u7d20\u306e\u9806\u4f4d<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code> \r\n var this_index = jQuery('.oya p').index(jQuery(this).parent());\r\n oya\u30af\u30e9\u30b9\u306e\u4e2d\u306ep\u304c\u4f55\u756a\u76ee\u304b\u304c\u53d6\u5f97\u3067\u304d\u308b this \u306f\u540c\u3058\u89aa\u3092\u6301\u3064\u30dc\u30bf\u30f3\u3068\u304b\r\n <\/code><\/pre>\n<h3>\u30c1\u30a7\u30c3\u30af\u3055\u308c\u3066\u3044\u308b\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\uff64checkBox\u306e\u5024\u3092\u53d6\u5f97<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code> \r\njQuery('input[name=\"shipper\"]:checked').val();\r\n <\/code><\/pre>\n<h3>\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u306e\u898b\u305f\u76ee\u3092ON\u306b\u3059\u308b\uff64\u5c5e\u6027\u3092\u9078\u629e\u72b6\u614b\u306b\u3059\u308b\u2190\u3053\u308c\u3089\u306f\u5225\u7269<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code> \r\n jQuery('[type=\"radio\"]').eq(0).prop('checked',true).attr('checked',true);\r\n <\/code><\/pre>\n<h3>\u9078\u629e\u3055\u308c\u305f\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u304c\u3042\u308c\u3070true<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code> \r\n var ret = $('[name=\"fls\"]').is(':checked'); \r\n <\/code><\/pre>\n<h3>\u30bb\u30ec\u30af\u30c8\u30e1\u30cb\u30e5\u30fc\u306b\u5024\u3092\u30bb\u30c3\u30c8<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code> \r\njQuery(this).prop(\"selectedIndex\", 0); \/\/\u6700\u521d\u306eoption\u6307\u5b9a\r\n <\/code><\/pre>\n<h3>\u30bb\u30ec\u30af\u30c8\u30e1\u30cb\u30e5\u30fc\u3067\u9078\u629e\u3055\u308c\u305foption\u8981\u7d20\u306edata\u5c5e\u6027\u3092\u53d6\u5f97<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code> \r\njQuery('select').children('option:selected').data('id');\r\n<\/code><\/pre>\n<h3>datalist\u3067\u9078\u629e\u3055\u308c\u305foption\u8981\u7d20\u306edata\u5c5e\u6027\u3092\u53d6\u5f97<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"><code> \r\n  $('[name=\"company\"]').change(function(){\r\n      var issuer_id = $(\"#datalistOptions22 option[value='\" + $('#company').val() + \"']\").data('issuer_id');\r\n      console.log(issuer_id);\r\n    });\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u8981\u7d20\u6570\u306e\u30ab\u30a6\u30f3\u30c8 [code] let [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-1889","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=\/wp\/v2\/posts\/1889","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1889"}],"version-history":[{"count":2,"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=\/wp\/v2\/posts\/1889\/revisions"}],"predecessor-version":[{"id":2121,"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=\/wp\/v2\/posts\/1889\/revisions\/2121"}],"wp:attachment":[{"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1889"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1889"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.ultimai.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}