{"id":1916,"date":"2013-11-21T04:04:59","date_gmt":"2013-11-21T04:04:59","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=1916"},"modified":"2017-01-27T12:20:33","modified_gmt":"2017-01-27T03:20:33","slug":"%eb%b0%98%eb%b3%b5%eb%ac%b8%ec%9d%98-%eb%b0%98%eb%b3%b5-%ed%9a%9f%ec%88%98%eb%a5%bc-%ec%a4%84%ec%9d%b4%eb%8a%94-%ec%bd%94%eb%93%9c-%ec%9e%91%ec%84%b1","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=1916","title":{"rendered":"\ubc18\ubcf5\ubb38\uc758 \ubc18\ubcf5 \ud69f\uc218\ub97c \uc904\uc774\ub294 \ucf54\ub4dc \uc791\uc131"},"content":{"rendered":"<p>\ubc18\ubcf5\ubb38\uc758 \uc18d\ub3c4\ub97c \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \ubc29\ubc95\uc911\uc758 \ud558\ub098\ub85c \ubc18\ubcf5 \ud69f\uc218\ub97c \uc904\uc774\ub294 \uac83\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uc5d0 \ub300\ud574\uc11c \uc81c\ud504 \uadf8\ub9b0\ubc84\uadf8(Jeff Greenberg)\uac00 \uc81c\uc548\ud55c \ub0b4\uc6a9\uc774 \uc788\ub294\ub370\uc694. \ucc98\uc74c \uc81c\uc548\ub420\ub54c \uc791\uc131\ub41c \uc0d8\ud50c \ucf54\ub4dc\uac00 C\uc774\uc9c0\ub9cc \uc774\ub97c JavaScript\ub85c \ud574\uc11d\ud574 \ubcf4\uc558\uc2b5\ub2c8\ub2e4. \uba3c\uc800 \uac1c\uc120\ud574 \ub098\uac08 \ubc18\ubcf5\ubb38\uc758 \ucf54\ub4dc\uac00 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<pre>\r\nfunction task(arg) {\r\n    var sum = 0;\r\n    for (var i = 0; i < 10; i++) {\r\n        sum += i;\r\n    }\r\n    return sum;\r\n}\r\n\r\nvar start = +new Date();\r\nvar result = 0;\r\nvar repeatCounts = 9999999;\r\n\r\n\/\/========================================\r\nfor (var i = 0; i < repeatCounts; i++) {\r\n    result += task(i);\r\n}\r\n\/\/========================================\r\n\r\nvar end = +new Date();\r\nvar diff = end - start;\r\nalert(\"result = \" + result + \", \" + diff + \" msec\");\r\n<\/pre>\n<p>\ucd5c\uc801\ud654 \ub300\uc0c1\uc774 \ub418\ub294 \ubc18\ubcf5\ubb38\uc740 13\u316117\ubc88\uc785\ub2c8\ub2e4. \ubc18\ubcf5\ubb38 \uc548\uc5d0\uc11c \uc2e4\ud574\ub41c \ucf54\ub4dc\ub97c \ubcc4\ub3c4\uc758 \ud568\uc218\uc778 task\ub85c \ubf51\uc544\ub1a8\uc2b5\ub2c8\ub2e4. task\ub294 1\ubd80\ud130 10\uae4c\uc9c0\uc758 \ud569\uacc4\ub97c \uad6c\ud558\ub294 \uac04\ub2e8\ud55c \uc5f0\uc0b0\uc744 \uc218\ud589\ud558\ub294 \ud568\uc218\uc785\ub2c8\ub2e4. \ubc18\ubcf5\ubb38\uc758 \uc18d\ub3c4\ub97c \uce21\uc815\ud558\uae30 \uc704\ud574\uc11c \ubc18\ubcf5\ubb38 \uc55e\ub4a4\ub85c \uc2dc\uac04\uc744 \uce21\uc815\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubc18\ubcf5\ubb38\uc744 \uc218\ud589\ud558\uc600\ub354\ub2c8 \uc81c \ud0c0\ube14\ub9bfPC\uc5d0\uc11c\ub294 8.6\ucd08\uac00 \ub098\uc654\uc2b5\ub2c8\ub2e4. \uc774\uc81c \ub3d9\uc77c\ud55c \uacb0\uacfc\ub97c \uc5bb\uc73c\uba74\uc11c\ub3c4 \ubc18\ubcf5 \ud68c\uc218\ub97c \uc904\uc774\ub294 \ubc29\uc2dd\uc73c\ub85c \ucd5c\uc801\ud654\ub97c \ud55c \ucf54\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. \uc704\uc758 13\u316117\ubc88\uc5d0 \ub300\ud55c \ubc18\ubcf5 \ucf54\ub4dc\uc5d0 \ub300\ud55c \ubcc0\uacbd\ub41c \ubd80\ubd84\ub9cc \uc5b8\uae09\ud558\uc600\uc2b5\ub2c8\ub2e4.<\/p>\n<pre>\r\n\/\/========================================\r\nvar iters = Math.floor(repeatCounts \/ 10);\r\nvar startAt = repeatCounts % 10;\r\nvar i = 0;\r\n\r\ndo {\r\n    switch (startAt) {\r\n        case 0: result += task(i++);\r\n        case 9: result += task(i++);\r\n        case 8: result += task(i++);\r\n        case 7: result += task(i++);\r\n        case 6: result += task(i++);\r\n        case 5: result += task(i++);\r\n        case 4: result += task(i++);\r\n        case 3: result += task(i++);\r\n        case 2: result += task(i++);\r\n        case 1: result += task(i++);\r\n    }\r\n    startAt = 0;\r\n} while (iters--);\r\n\/\/====================================\r\n<\/pre>\n<p>\ud55c\ubc88\uc758 \ubc18\ubcf5\uc73c\ub85c \ucd5c\ub300 10\ubc88\uc758 \ubc18\ubcf5\uc744 \ub300\uc2e0\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. switch \ubb38\uc744 \ubcf4\uba74 break\ubb38\uc774 \uc5c6\ub2e4\ub294 \uc810\uc744 \uc720\ub150\ud574 \ud574\uc11d\ud574 \ubcf4\uba74 \uadf8 \uc6d0\ub9ac\ub97c \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\ud589\ud574 \ubcf4\uba74 \uc18c\uc694\ub418\ub294 \uc2dc\uac04\uc774 6.3\ucd08\ub85c 2.4\ucd08 \ub2e8\ucd95\ub41c \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ubc18\ubcf5\ubb38\uc758 \uc18d\ub3c4\ub97c \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \ubc29\ubc95\uc911\uc758 \ud558\ub098\ub85c \ubc18\ubcf5 \ud69f\uc218\ub97c \uc904\uc774\ub294 \uac83\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uc5d0 \ub300\ud574\uc11c \uc81c\ud504 \uadf8\ub9b0\ubc84\uadf8(Jeff Greenberg)\uac00 \uc81c\uc548\ud55c \ub0b4\uc6a9\uc774 \uc788\ub294\ub370\uc694. \ucc98\uc74c \uc81c\uc548\ub420\ub54c \uc791\uc131\ub41c \uc0d8\ud50c \ucf54\ub4dc\uac00 C\uc774\uc9c0\ub9cc \uc774\ub97c JavaScript\ub85c \ud574\uc11d\ud574 \ubcf4\uc558\uc2b5\ub2c8\ub2e4. \uba3c\uc800 \uac1c\uc120\ud574 \ub098\uac08 \ubc18\ubcf5\ubb38\uc758 \ucf54\ub4dc\uac00 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. function task(arg) { var sum = 0; for (var i = 0; i < 10; i++) { sum += &hellip; \n\n<p class=\"link-more\"><a href=\"http:\/\/www.gisdeveloper.co.kr\/?p=1916\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;\ubc18\ubcf5\ubb38\uc758 \ubc18\ubcf5 \ud69f\uc218\ub97c \uc904\uc774\ub294 \ucf54\ub4dc \uc791\uc131&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63],"tags":[],"class_list":["post-1916","post","type-post","status-publish","format-standard","hentry","category-actionscript"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/1916","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1916"}],"version-history":[{"count":1,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/1916\/revisions"}],"predecessor-version":[{"id":2925,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/1916\/revisions\/2925"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1916"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}