{"id":783,"date":"2022-04-01T10:12:05","date_gmt":"2022-04-01T01:12:05","guid":{"rendered":"http:\/\/160.251.208.217\/?p=783"},"modified":"2022-11-19T19:24:11","modified_gmt":"2022-11-19T10:24:11","slug":"javascript-xpath-3","status":"publish","type":"post","link":"https:\/\/it-dxblog.com\/blog\/javascript-xpath-3\/","title":{"rendered":"\u3010JavaScript\u3011XPath\u3092\u4f7f\u7528\u3059\u308b#3\u3000\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8\u3068\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u306e\u9055\u3044"},"content":{"rendered":"\n

document.evaluate\u30e1\u30bd\u30c3\u30c9<\/strong>\u306e\u623b\u308a\u5024\u306e\u7a2e\u985e<\/span><\/strong>\u306b\u3064\u3044\u3066\u3001\u3088\u304f\u4f7f\u3044\u305d\u3046\u306a\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8<\/strong><\/a>\u3068\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8<\/strong><\/a>\u3092\u8a66\u3057\u307e\u3057\u305f\u3002
\u3069\u3061\u3089\u3092\u4f7f\u3063\u305f\u65b9\u304c\u3088\u3044\u304b\u3068\u3044\u308f\u308c\u308b\u3068\u3001\u79c1\u306f\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8<\/span><\/strong>\u3092\u4f7f\u3044\u307e\u3059\u3002
\u7406\u7531\u306f\u3001\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8<\/strong>\u3067\u306fappendChild<\/strong>\u3059\u308b\u3068\u30a8\u30e9\u30fc<\/span><\/strong>\u304c\u51fa\u3066\u3057\u307e\u3063\u305f\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n

\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8\u3067appendChild<\/span><\/span><\/h2>\n\n\n\n

\u623b\u308a\u5024\u306e\u7a2e\u985e\u3092\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8<\/strong>\uff08ORDERED_NODE_ITERATOR_TYPE\uff09\u306b\u3057\u3066appendChild\u3057\u305f\uff0820\u884c\u76ee\uff09\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u305f\u3068\u3053\u308d\u30a8\u30e9\u30fc\u3068\u306a\u308a\u307e\u3057\u305f\u3002
\u203b\u4f7f\u7528\u3059\u308bXML\u306f#1\u3001#2\u3068\u540c\u3058\u3082\u306e\u3092\u4f7f\u7528<\/p>\n\n\n\n

<!DOCTYPE html>\n\n<html>\n    <head>\n        <script>\n            \/\/ onload\u6642\u306b\u5b9f\u884c\n            function my_onLoad(){\n\n                const objXml = my_loadXML('.\/static\/player.xml');\n\n                \/\/ XPath\u3092\u4f5c\u6210\n                let xPath = \"\/\/player\/name[..\/position='\u5916\u91ce\u624b']\";\n\n                \/\/ XPath\u3092\u9069\u7528\uff08\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8\uff09\n                let result = objXml.evaluate(xPath, objXml, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);\n\n                \/\/ XPath\u3092\u9069\u7528\u3057\u305f\u7d50\u679c\u3092body\u306b\u8ffd\u52a0\u3059\u308b\n                let r;\n                while (r = result.iterateNext()) {\n                    document.body.appendChild(r);\n                }\n            }\n\n            \/\/ XML\u3092\u8aad\u307f\u8fbc\u3080\n            \/\/ path : \u8aad\u307f\u8fbc\u3080XML\u306e\u30d1\u30b9\n            function my_loadXML(path){\n                let objXml = new XMLHttpRequest();\n                objXml.open('GET', path, false);\n                objXml.send('');\n                return objXml.responseXML;\n            }\n        <\/script>\n    <\/head>\n    <body onload='my_onLoad()'>\n    <\/body>\n<\/html><\/code><\/pre><\/div>\n\n\n\n
\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/div>
\n
Uncaught DOMException: Failed to execute \u2018iterateNext\u2019 on \u2018XPathResult\u2019: The document has mutated since the result was returned.<\/p>\n<\/div><\/div>\n\n\n\n
\u300c\u7d50\u679c\u304c\u8fd4\u3055\u308c\u3066\u304b\u3089\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u304c\u5909\u66f4\u3055\u308c\u307e\u3057\u305f<\/strong>\uff08The document has mutated since the result was returned.\uff09\u300d\u3068\u3042\u308a\u307e\u3059\u3002appendChild\u3057\u305f\u306e\u3067\u5143\u306eXML\u304c\u5909\u66f4\u3055\u308c\u3066\u3057\u307e\u3063\u305f\u306e\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n\n\n\n
W3C\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3082\u300c\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u5909\u66f4\u3059\u308b\u3068\u3001\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u7121\u52b9\u306b\u306a\u308a\u307e\u3059<\/strong>\uff08Document modification invalidates the iteration.\uff09\u300d\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
ORDERED_NODE_ITERATOR_TYPE\n\u3000The result is a node set as defined by [XPath 1.0] that will be accessed iteratively, which will produce document-ordered nodes. Document modification invalidates the iteration.<\/strong><\/code><\/pre>\n\n\n\n
<\/i>\u53c2\u8003<\/span>Document Object Model XPathW3C \u2013 XPathResult-ORDERED-NODE-ITERATOR-TYPE<\/span><\/span><\/a><\/div>\n\n\n\n
\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3067appendChild<\/span><\/span><\/h2>\n\n\n\n
\u623b\u308a\u5024\u306e\u7a2e\u985e\u3092\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8<\/strong>\uff08ORDERED_NODE_SNAPSHOT_TYPE\uff09\u306b\u3057\u3066appendChild\u3057\u305f\u30b3\u30fc\u30c9\u3067\u3059\u3002\u3053\u3061\u3089\u306f\u7279\u306b\u30a8\u30e9\u30fc\u306f\u3067\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u3002
\u203b\u4f7f\u7528\u3059\u308bXML\u306f#1\u3001#2\u3068\u540c\u3058\u3082\u306e\u3092\u4f7f\u7528<\/p>\n\n\n\n
<!DOCTYPE html>\n\n<html>\n    <head>\n        <script>\n            \/\/ onload\u6642\u306b\u5b9f\u884c\n            function my_onLoad(){\n\n                const objXml = my_loadXML('.\/static\/player.xml');\n\n                \/\/ XPath\u3092\u4f5c\u6210\n                let xPath = \"\/\/player\/name[..\/position='\u5916\u91ce\u624b']\";\n\n                \/\/ XPath\u3092\u9069\u7528\uff08\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\uff09\n                let result = objXml.evaluate(xPath, objXml, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);\n\n                \/\/ XPath\u3092\u9069\u7528\u3057\u305f\u7d50\u679c\u3092body\u306b\u8ffd\u52a0\u3059\u308b\n                for(let i=0; i<result.snapshotLength; i++){\n                    document.body.appendChild(result.snapshotItem(i));    \n                }\n            }\n\n            \/\/ XML\u3092\u8aad\u307f\u8fbc\u3080\n            \/\/ path : \u8aad\u307f\u8fbc\u3080XML\u306e\u30d1\u30b9\n            function my_loadXML(path){\n                let objXml = new XMLHttpRequest();\n                objXml.open('GET', path, false);\n                objXml.send('');\n                return objXml.responseXML;\n            }\n        <\/script>\n    <\/head>\n    <body onload='my_onLoad()'>\n    <\/body>\n<\/html><\/code><\/pre><\/div>\n\n\n\n
\u30b3\u30fc\u30c9\u306e\u88dc\u8db3<\/span><\/span><\/h2>\n\n\n\n
\u4eca\u56de\u306e\u30b3\u30fc\u30c9\u4f8b\u306f\u3001\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8\u3068\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u306e\u9055\u3044\u304c\u898b\u308c\u308c\u3070\u3088\u3044\u3068\u3044\u3046\u89b3\u70b9\u3067\u4f5c\u3063\u305f\u305f\u3081\u3001XPath\u3067\u9069\u7528\u3057\u305f\u7d50\u679c\u3092body\u306bappendChild\u3059\u308b\u3068\u3044\u3046\u3001\u5b9f\u969b\u306b\u306f\u3042\u307e\u308a\u884c\u308f\u306a\u3044\u3088\u3046\u306a\u3053\u3068\u3092\u3057\u307e\u3057\u305f\u3002
\u5b9f\u969b\u306b\u306f\u3001XPath\u3092\u9069\u7528\u3057\u305f\u7d50\u679c\u3092JavsScript\u3067\u751f\u6210\u3057\u305fXML\u306bappendChild\u3057\u3001\u305d\u306eXML\u306bXSL\u5909\u63db\u3092\u884c\u3046\u3068\u3044\u3063\u305f\u3088\u3046\u306a\u3053\u3068\u3092\u3084\u3063\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
document.evaluate\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u306e\u7a2e\u985e\u306b\u3064\u3044\u3066\u3001\u3088\u304f\u4f7f\u3044\u305d\u3046\u306a\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8\u3068\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u8a66\u3057\u307e\u3057\u305f\u3002\u3069\u3061\u3089\u3092\u4f7f\u3063\u305f\u65b9\u304c\u3088\u3044\u304b\u3068\u3044\u308f\u308c\u308b\u3068\u3001\u79c1\u306f\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u4f7f\u3044\u307e\u3059\u3002\u7406\u7531\u306f\u3001\u30ce\u30fc\u30c9\u30bb\u30c3\u30c8\u3067\u306fa … <\/p>\n","protected":false},"author":1,"featured_media":2089,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wp_rev_ctl_limit":""},"categories":[8],"tags":[32],"class_list":["post-783","post","type-post","status-publish","format-standard","has-post-thumbnail","category-javascript","tag-xml","entry"],"_links":{"self":[{"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/posts\/783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/comments?post=783"}],"version-history":[{"count":5,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/posts\/783\/revisions"}],"predecessor-version":[{"id":2090,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/posts\/783\/revisions\/2090"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/media\/2089"}],"wp:attachment":[{"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/media?parent=783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/categories?post=783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/it-dxblog.com\/blog\/wp-json\/wp\/v2\/tags?post=783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}