{"id":3521,"date":"2024-11-10T13:39:21","date_gmt":"2024-11-10T05:39:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3521\/"},"modified":"2024-11-10T13:39:21","modified_gmt":"2024-11-10T05:39:21","slug":"javascript-%e4%b8%ad%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%e7%a6%bb%e5%bc%80%e9%a1%b5%e9%9d%a2%e5%90%8e%e5%ae%9a%e6%97%b6%e5%99%a8%e5%af%bc%e8%87%b4-div-%e5%8a%a0%e9%80%9f%e8%bd%ac%e5%8a%a8%e7%9a%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3521\/","title":{"rendered":"JavaScript \u4e2d\u5982\u4f55\u89e3\u51b3\u79bb\u5f00\u9875\u9762\u540e\u5b9a\u65f6\u5668\u5bfc\u81f4 div \u52a0\u901f\u8f6c\u52a8\u7684\u95ee\u9898\uff1f"},"content":{"rendered":"

\"JavaScript<\/p>\n

\u79bb\u5f00\u5f53\u524d\u9875\u9762\u540e\uff0c\u5b9a\u65f6\u5668\u63a7\u5236\u4e0b\u7684 div \u52a0\u901f\u8f6c\u52a8\uff0c\u6062\u590d\u540e\u6062\u590d\u5300\u901f<\/strong><\/p>\n

\u5728 javascript \u4e2d\uff0c\u5b9a\u65f6\u5668\u7528\u6765\u5728\u6307\u5b9a\u65f6\u95f4\u95f4\u9694\u6267\u884c\u4ee3\u7801\u5757\u3002\u5728\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u5b9a\u65f6\u5668\u88ab\u7528\u6765\u8ba9\u4e00\u4e2a div \u5143\u7d20\u5728\u9875\u9762\u4e0a\u4ee5\u5300\u901f\u65cb\u8f6c\u3002\u4f46\u662f\uff0c\u5f53\u7528\u6237\u79bb\u5f00\u5f53\u524d\u9875\u9762\u65f6\uff0c\u5b9a\u65f6\u5668\u4e0d\u4f1a\u88ab\u6e05\u9664\uff0c\u5bfc\u81f4 div \u52a0\u901f\u8f6c\u52a8\u3002<\/p>\n

\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\u68c0\u6d4b\u9875\u9762\u662f\u5426\u5728\u6d4f\u89c8\u5668\u7684\u5f53\u524d\u9009\u9879\u5361\u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528 document.hidden \u5c5e\u6027\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u5f53\u7528\u6237\u79bb\u5f00\u5f53\u524d\u9875\u9762\u65f6\uff0cdocument.hidden \u7684\u503c\u4e3a true\uff0c\u5426\u5219\u4e3a false\u3002<\/p>\n

\u4e0d\u8003\u8651\u517c\u5bb9\u6027<\/strong><\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

\u5982\u679c\u4e0d\u8003\u8651\u517c\u5bb9\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n

document.addeventlistener(\"visibilitychange\", function () {\n  if (!document.hidden) {\n    \/\/ \u5904\u4e8e\u5f53\u524d\u9875\u9762\n    timer = setinterval(() => {\n      rotate();\n    }, 1000);\n    console.log('active');\n  } else {\n    clearinterval(timer);\n    console.log('hidden');\n  }\n});<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8003\u8651\u517c\u5bb9\u6027<\/strong><\/p>\n
\u5982\u679c\u9700\u8981\u8003\u8651\u517c\u5bb9\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
var hiddenProperty = 'hidden' in document ? 'hidden' :\n  'webkitHidden' in document ? 'webkitHidden' :\n    'mozHidden' in document ? 'mozHidden' :\n      null;\nvar visibilityChangeEvent = hiddenProperty.replace(\/hidden\/i, 'visibilitychange');\nvar onVisibilityChange = function () {\n  if (!document[hiddenProperty]) {\n    rotate(); \/\/ \u65e0\u95f4\u9699\u65cb\u8f6c\n    timer = setInterval(() => {\n      rotate();\n    }, 1000);\n    console.log(hiddenProperty);\n  } else {\n    clearInterval(timer)\n    timer\n  }\n}\ndocument.addEventListener(visibilityChangeEvent, onVisibilityChange);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fJavaScript \u4e2d\u5982\u4f55\u89e3\u51b3\u79bb\u5f00\u9875\u9762\u540e\u5b9a\u65f6\u5668\u5bfc\u81f4 div \u52a0\u901f\u8f6c\u52a8\u7684\u95ee\u9898\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u79bb\u5f00\u5f53\u524d\u9875\u9762\u540e\uff0c\u5b9a\u65f6\u5668\u63a7\u5236\u4e0b\u7684 div \u52a0\u901f\u8f6c\u52a8\uff0c\u6062\u590d\u540e\u6062\u590d\u5300\u901f \u5728 javascript \u4e2d\uff0c\u5b9a\u65f6\u5668\u7528\u6765\u5728\u6307\u5b9a\u65f6\u95f4\u95f4\u9694\u6267\u884c\u4ee3\u7801\u5757\u3002\u5728\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u5b9a\u65f6\u5668\u88ab\u7528\u6765\u8ba9\u4e00\u4e2a div \u5143\u7d20\u5728\u9875\u9762\u4e0a\u4ee5\u5300\u901f\u65cb\u8f6c\u3002\u4f46\u662f\uff0c\u5f53\u7528\u6237\u79bb\u5f00\u5f53\u524d\u9875\u9762\u65f6\uff0c\u5b9a\u65f6\u5668\u4e0d\u4f1a\u88ab\u6e05\u9664\uff0c\u5bfc\u81f4 div \u52a0\u901f\u8f6c\u52a8\u3002 \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\u68c0\u6d4b\u9875\u9762\u662f\u5426\u5728\u6d4f\u89c8\u5668\u7684\u5f53\u524d\u9009\u9879\u5361\u4e2d\u3002\u53ef\u4ee5\u4f7f\u7528 document.hidden \u5c5e\u6027\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u5f53\u7528\u6237\u79bb\u5f00\u5f53\u524d\u9875\u9762\u65f6\uff0cdocument.hidden \u7684\u503c\u4e3a true\uff0c\u5426\u5219\u4e3a false\u3002 \u4e0d\u8003\u8651\u517c\u5bb9\u6027 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5982\u679c\u4e0d\u8003\u8651\u517c\u5bb9\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a document.addeventlistener(“visibilitychange”, function () { if (!document.hidden) { \/\/ \u5904\u4e8e\u5f53\u524d\u9875\u9762 timer = setinterval(() => { rotate(); }, 1000); console.log(‘active’); } else { clearinterval(timer); console.log(‘hidden’); } }); \u767b\u5f55\u540e\u590d\u5236 \u8003\u8651\u517c\u5bb9\u6027 \u5982\u679c\u9700\u8981\u8003\u8651\u517c\u5bb9\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a var hiddenProperty = ‘hidden’ in document ? ‘hidden’ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3521","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3521","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=3521"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3521\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}