{"id":225,"date":"2012-09-05T11:01:30","date_gmt":"2012-09-05T02:01:30","guid":{"rendered":"http:\/\/www.freesens.com\/x\/?p=225"},"modified":"2012-09-05T13:16:29","modified_gmt":"2012-09-05T04:16:29","slug":"javascript-var-%ec%84%a0%ec%96%b8%ea%b3%bc-%ec%83%9d%eb%9e%b5%ed%95%98%eb%8a%94-%ea%b2%bd%ec%9a%b0%ec%9d%98-%ec%b0%a8%ec%9d%b4%ec%a0%90","status":"publish","type":"post","link":"http:\/\/www.freesens.com\/x\/?p=225","title":{"rendered":"JavaScript var \uc120\uc5b8\uacfc \uc0dd\ub7b5\ud558\ub294 \uacbd\uc6b0\uc758 \ucc28\uc774\uc810."},"content":{"rendered":"

JavaScript \uc790\uccb4\uac00 \uad49\uc7a5\ud788 \uc720\uc5f0\ud55c(?) \ud615\ud0dc\ub85c \ubcc0\uc218\uc120\uc5b8\uc744 \ud5c8\uc6a9\ud558\uace0 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc885\uc885 \ucc29\uac01\ud558\ub294 \uacbd\uc6b0\uac00 \ubc1c\uc0dd\ud568.
\nJavaScript \uc5ed\uc2dc \ubcc0\uc218\uc758 scope\uac00 \uc874\uc7ac\ud558\ub294\ub370, \uc544\ub798\uc640 var\ub97c \ubd99\uc774\uc9c0 \uc54a\uace0 \uc120\uc5b8\ud558\ub294 \uacbd\uc6b0 \ud2b9\uc815 function\ub0b4\ubd80\uc5d0\uc11c \uc120\uc5b8\ub418\uc5c8\uc9c0\ub9cc, scope\uac00 \uc804\uc5ed\ubcc0\uc218\ucc98\ub7fc \uc778\uc2dd\ub41c\ub2e4.<\/p>\n\n\n\n
\n
function summary() {\r\n    resultVal = 100;\r\n}\r\n\r\nalert(typeof(resultVal));\r\nsummary();\r\nalert(typeof(resultVal));\r\nalert(resultVal);<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\uc704\uc640\uac19\uc774 function\ub0b4\ubd80\uc5d0\uc11c var\ub97c \ubd99\uc774\uc9c0 \uc54a\uace0, resultVal\uc774\ub77c\ub294 \ubcc0\uc218\ub97c \ubc14\ub85c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 \ud574\ub2f9 \ubcc0\uc218\uac00 summary() function\ub0b4\ubd80\uc758 \ub85c\uceec\ubcc0\uc218\uac00 \uc544\ub2c8\ub77c, \ube0c\ub77c\uc6b0\uc800 \ucd5c\uc0c1\uc704\uac1d\uccb4(window)\uc758 \ud504\ub85c\ud37c\ud2f0\ub85c \uc124\uc815\ub418\uba70, \uc704\uc758 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\ub294 \uacbd\uc6b0 \ucd5c\ucd08\uc5d0\ub294 “undefined” \uc0c1\ud0dc\uc5d0\uc11c summary()\ub97c \ud638\ucd9c\ud55c \uc774\ud6c4 resultVal\uac00 \uc804\uc5ed\ubcc0\uc218(\uc2e4\uc81c\ub85c\ub294 \ucd5c\uc0c1\uc704\uac1d\uccb4\uc758 \ud504\ub85c\ud37c\ud2f0)\ub85c \uc124\uc815\ub418\uc5b4\uc11c, \uc815\uc0c1\uc801\uc73c\ub85c \uac12\uc744 \ucd9c\ub825\ud55c\ub2e4.<\/p>\n
\uc704\uc758 \uc608\uc81c\uc640 \uac19\uc774 var\ub97c \ubd99\uc774\uc9c0 \uc54a\uace0, \ubb35\uc2dc\uc801\uc73c\ub85c \ubcc0\uc218\ub97c \uc120\uc5b8\ud558\uc5ec \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc740\ub370, \uc774 \uacbd\uc6b0 \ud2b9\uc815 function() \ub0b4\ubd80\uc5d0\uc11c \uc120\uc5b8\ub410\ub2e4 \ud558\ub354\ub77c\ub3c4 \ud574\ub2f9 function()\uc548\uc758 scope\uac00 \uc544\ub2c8\ub77c, \uc804\uc5ed\ubcc0\uc218\ucc98\ub7fc \uc0ac\uc6a9\ub418\ub294 \uac83\uc5d0 \uc8fc\uc758\ud574\uc57c \ud568.<\/p>\n
\uace0\ub85c \ubc18\ub4dc\uc2dc \ubcc0\uc218\ub97c \uc120\uc5b8\ud560\ub54c\ub294 var\ub97c \ubd99\uc5ec\uc11c \uc120\uc5b8\ud574\uc57c….\uc608\uc0c1\uce58 \ubabb\ud55c \uc624\uc791\ub3d9\uc744 \ud53c\ud560 \uc218 \uc788\ub2e4…<\/p>\n","protected":false},"excerpt":{"rendered":"
JavaScript \uc790\uccb4\uac00 \uad49\uc7a5\ud788 \uc720\uc5f0\ud55c(?) \ud615\ud0dc\ub85c \ubcc0\uc218\uc120\uc5b8\uc744 \ud5c8\uc6a9\ud558\uace0 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc885\uc885 \ucc29\uac01\ud558\ub294 \uacbd\uc6b0\uac00 \ubc1c\uc0dd\ud568. JavaScript \uc5ed\uc2dc \ubcc0\uc218\uc758 scope\uac00 \uc874\uc7ac\ud558\ub294\ub370, \uc544\ub798\uc640 var\ub97c \ubd99\uc774\uc9c0 \uc54a\uace0 \uc120\uc5b8\ud558\ub294 \uacbd\uc6b0 \ud2b9\uc815 function\ub0b4\ubd80\uc5d0\uc11c \uc120\uc5b8\ub418\uc5c8\uc9c0\ub9cc, scope\uac00 \uc804\uc5ed\ubcc0\uc218\ucc98\ub7fc \uc778\uc2dd\ub41c\ub2e4. function summary() { resultVal = 100; } alert(typeof(resultVal)); summary(); alert(typeof(resultVal)); alert(resultVal); \uc704\uc640\uac19\uc774 function\ub0b4\ubd80\uc5d0\uc11c var\ub97c \ubd99\uc774\uc9c0 \uc54a\uace0, resultVal\uc774\ub77c\ub294 \ubcc0\uc218\ub97c \ubc14\ub85c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 \ud574\ub2f9 \ubcc0\uc218\uac00 summary() function\ub0b4\ubd80\uc758 … Continue reading JavaScript var \uc120\uc5b8\uacfc \uc0dd\ub7b5\ud558\ub294 \uacbd\uc6b0\uc758 \ucc28\uc774\uc810.<\/span> →<\/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":[6],"tags":[],"class_list":["post-225","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=\/wp\/v2\/posts\/225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=225"}],"version-history":[{"count":6,"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=\/wp\/v2\/posts\/225\/revisions"}],"predecessor-version":[{"id":234,"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=\/wp\/v2\/posts\/225\/revisions\/234"}],"wp:attachment":[{"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=225"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.freesens.com\/x\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}