{"id":70,"date":"2024-05-24T11:41:50","date_gmt":"2024-05-24T11:41:50","guid":{"rendered":"http:\/\/icpnet.cn\/?p=70"},"modified":"2024-05-24T11:41:50","modified_gmt":"2024-05-24T11:41:50","slug":"js%e8%8e%b7%e5%8f%96%e9%a1%b5%e9%9d%a2fps%e5%80%bc","status":"publish","type":"post","link":"http:\/\/icpnet.cn\/?p=70","title":{"rendered":"JS\u83b7\u53d6\u9875\u9762FPS\u503c"},"content":{"rendered":"\n<p>FPS\u662f\u6307\u6bcf\u79d2\u949f\u9875\u9762\u7684\u5237\u65b0\u7387\uff0c\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u6bcf\u79d2\u00a0<code>window.requestAnimationFrame<\/code>\u00a0\u7684\u8c03\u7528\u9891\u7387\u6765\u505a\u4e3a FPS \u503c\u3002\u5b83\u63a5\u6536\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u8be5\u56de\u8c03\u51fd\u6570\u4f1a\u5728\u6d4f\u89c8\u5668\u4e0b\u4e00\u6b21\u91cd\u7ed8\u4e4b\u524d\u6267\u884c\u3002\u6240\u4ee5\u53ea\u8981\u6211\u4eec\u5faa\u73af\u8c03\u7528\u5e76<strong>\u8bb0\u5f55\u5355\u4f4d\u65f6\u95f4\u5185\u7684\u8c03\u7528\u6b21\u6570<\/strong>\u5c31\u80fd\u8ba1\u7b97\u5f53\u524d\u9875\u9762\u7684\u5e27\u7387\u4e86\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(function () {\r\n            var frames = 0;\r\n            var startTime = performance.now();\r\n\r\n            function updateFPS() {\r\n                frames++;\r\n                var currentTime = performance.now();\r\n                var elapsedTime = currentTime - startTime;\r\n                if (elapsedTime >= 1000) {\r\n                    var fps = Math.round(frames \/ (elapsedTime \/ 1000));\r\n                    console.log(\"FPS: \" + fps);\r\n\r\n                    frames = 0;\r\n                    startTime = performance.now();\r\n                }\r\n\r\n                requestAnimationFrame(updateFPS);\r\n            }\r\n\r\n            requestAnimationFrame(updateFPS);\r\n        })();<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>FPS\u662f\u6307\u6bcf\u79d2\u949f\u9875\u9762\u7684\u5237\u65b0\u7387\uff0c\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u6bcf\u79d2\u00a0window.requestAnimationFrame\u00a0\u7684\u8c03\u7528\u9891\u7387\u6765\u505a\u4e3a FPS \u503c\u3002\u5b83\u63a5\u6536\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u8be5\u56de\u8c03\u51fd\u6570\u4f1a\u5728\u6d4f\u89c8\u5668\u4e0b\u4e00\u6b21\u91cd\u7ed8\u4e4b\u524d\u6267\u884c\u3002\u6240\u4ee5\u53ea\u8981\u6211\u4eec\u5faa\u73af\u8c03\u7528\u5e76\u8bb0\u5f55\u5355\u4f4d\u65f6\u95f4\u5185\u7684\u8c03\u7528\u6b21\u6570\u5c31\u80fd\u8ba1\u7b97\u5f53\u524d\u9875\u9762\u7684\u5e27\u7387\u4e86\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[21,6],"_links":{"self":[{"href":"http:\/\/icpnet.cn\/index.php?rest_route=\/wp\/v2\/posts\/70"}],"collection":[{"href":"http:\/\/icpnet.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/icpnet.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/icpnet.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/icpnet.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=70"}],"version-history":[{"count":1,"href":"http:\/\/icpnet.cn\/index.php?rest_route=\/wp\/v2\/posts\/70\/revisions"}],"predecessor-version":[{"id":71,"href":"http:\/\/icpnet.cn\/index.php?rest_route=\/wp\/v2\/posts\/70\/revisions\/71"}],"wp:attachment":[{"href":"http:\/\/icpnet.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=70"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/icpnet.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=70"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/icpnet.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=70"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}