{"id":16918,"date":"2026-07-15T14:05:45","date_gmt":"2026-07-15T05:05:45","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=16918"},"modified":"2026-07-15T14:50:55","modified_gmt":"2026-07-15T05:50:55","slug":"symbol-toprimitive%eb%a5%bc-%ec%9d%b4%ec%9a%a9%ed%95%9c-%ea%b0%9d%ec%b2%b4%ec%9d%98-%ec%9b%90%ec%8b%9c%ea%b0%92-%eb%b3%80%ed%99%98-%ec%a0%9c%ec%96%b4","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=16918","title":{"rendered":"Symbol.toPrimitive\ub97c \uc774\uc6a9\ud55c \uac1d\uccb4\uc758 \uc6d0\uc2dc\uac12 \ubcc0\ud658 \uc81c\uc5b4"},"content":{"rendered":"

\uac1d\uccb4 \uc790\uccb4\uc5d0 \ub300\ud55c \uc801\uc808\ud55c \uc6d0\uc2dc\uac12\uc73c\ub85c \ubcc0\ud658\ud558\uace0\uc790 \ud560\ub54c Symbol.toPrimitive\uac00 \ub9e4\uc6b0 \uc720\uc6a9\ud558\uac8c \uc0ac\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\uac00 \uc788\ub2e4\uba74 …<\/p>\n

\r\nconst money = {\r\n    amount: 1000,\r\n\r\n    [Symbol.toPrimitive](hint) {\r\n        if (hint === \"number\") {\r\n            return this.amount;\r\n        }\r\n\r\n        return `${this.amount}\uc6d0`;\r\n    }\r\n};\r\n<\/pre>\n
\uc704\uc758 money\uc5d0 \ub300\ud574 \ub2e4\uc74c \ucf54\ub4dc\ub97c \uc2e4\ud589\ud574 \ubcf4\uba74 \uc0c1\ud669\uc5d0 \ub9de\uac8c \ud574\ub2f9 \uac1d\uccb4\uac00 \uc54c\ub9de\uc740 \uc6d0\uc2dc\uac12\uc73c\ub85c \ubcc0\ud658\ub418\uc5b4 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n
\r\nconsole.log(+money);     \/\/ 1000\r\nconsole.log(`${money}`); \/\/ 1000\uc6d0\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\uac1d\uccb4 \uc790\uccb4\uc5d0 \ub300\ud55c \uc801\uc808\ud55c \uc6d0\uc2dc\uac12\uc73c\ub85c \ubcc0\ud658\ud558\uace0\uc790 \ud560\ub54c Symbol.toPrimitive\uac00 \ub9e4\uc6b0 \uc720\uc6a9\ud558\uac8c \uc0ac\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\uac00 \uc788\ub2e4\uba74 … const money = { amount: 1000, [Symbol.toPrimitive](hint) { if (hint === “number”) { return this.amount; } return `${this.amount}\uc6d0`; } }; \uc704\uc758 money\uc5d0 \ub300\ud574 \ub2e4\uc74c \ucf54\ub4dc\ub97c \uc2e4\ud589\ud574 \ubcf4\uba74 \uc0c1\ud669\uc5d0 \ub9de\uac8c \ud574\ub2f9 \uac1d\uccb4\uac00 \uc54c\ub9de\uc740 \uc6d0\uc2dc\uac12\uc73c\ub85c \ubcc0\ud658\ub418\uc5b4 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. console.log(+money); \/\/ … <\/p>\n
\ub354 \ubcf4\uae30 “Symbol.toPrimitive\ub97c \uc774\uc6a9\ud55c \uac1d\uccb4\uc758 \uc6d0\uc2dc\uac12 \ubcc0\ud658 \uc81c\uc5b4”<\/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":[88],"tags":[],"class_list":["post-16918","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/16918","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=16918"}],"version-history":[{"count":2,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/16918\/revisions"}],"predecessor-version":[{"id":16920,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/16918\/revisions\/16920"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16918"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}