\uc18d\uc131\uc744 \uac70\uc9c0\ub294 \ud568\uc218 \ud0c0\uc785 \uc815\uc758 (\uc815\ud655\ud788\ub294 \ud638\ucd9c \uc2dc\uadf8\ub2c8\ucc98(call signature))<\/p>\n
\r\ntype FunctionWithProperties = {\r\n (someArg: number): boolean;\r\n\r\n description: string;\r\n};\r\n\r\nfunction doSomething(fn: FunctionWithProperties) {\r\n console.log(fn.description + \": \uacb0\uacfc = \" + fn(6));\r\n}\r\n\r\n\/\/ \ud568\uc218 \uc0dd\uc131\r\nconst isGreaterThanFive: FunctionWithProperties = (num: number) => {\r\n return num > 5;\r\n};\r\n\r\n\/\/ \uc18d\uc131 \ucd94\uac00\r\nisGreaterThanFive.description = \"5\ubcf4\ub2e4 \ud070\uc9c0 \ud655\uc778\ud558\ub294 \ud568\uc218\";\r\n\r\n\r\n\/\/ \ud568\uc218 \ud638\ucd9c\r\ndoSomething(isGreaterThanFive);\r\n<\/pre>\n\ud074\ub798\uc2a4\uc758 \uc0dd\uc131\uc790\uc5d0 \ub300\ud55c \ud568\uc218 \ud0c0\uc785 \uc815\uc758 (\uc815\ud655\ud788\ub294 \uc0dd\uc131\uc790 \uc2dc\uadf8\ub2c8\ucc98(construct signature))<\/p>\n
\r\ntype SomeConstructor = {\r\n new (s: string): MyClass;\r\n};\r\n\r\nfunction fn(ctor: SomeConstructor) {\r\n return new ctor(\"hello\");\r\n}\r\n\r\nclass MyClass {\r\n field: string = \"hello\";\r\n\r\n constructor(message: string) {\r\n console.log(\"constructor called:\", message);\r\n }\r\n}\r\n\r\nconst a = fn(MyClass);\r\nconsole.log(a.field);\r\n<\/pre>\n\uc704\uc758 2\uac00\uc9c0 \uc694\uc18c\ub97c \uc870\ud569\ud574 \ubcf4\uba74….<\/p>\n
\r\ninterface CallOrConstruct {\r\n new (s: string): Date;\r\n (n?: number): number;\r\n}\r\n\r\n\/\/ \ud568\uc218 \uac1d\uccb4 \uc0dd\uc131\r\nconst callOrConstruct: CallOrConstruct = function (n?: number): number {\r\n return n ?? 0;\r\n} as CallOrConstruct;\r\n\r\n\/\/ \uc0dd\uc131\uc790 \ub3d9\uc791 \ucd94\uac00\r\ncallOrConstruct.prototype = Date.prototype;\r\n\r\n\/\/ \uc77c\ubc18 \ud568\uc218\ucc98\ub7fc \ud638\ucd9c\r\nconst result = callOrConstruct(100);\r\n\r\nconsole.log(result); \/\/ 100\r\n\r\n\/\/ \uc0dd\uc131\uc790\ucc98\ub7fc \ud638\ucd9c\r\nconst date = new callOrConstruct(\"2026-07-16\");\r\n\r\nconsole.log(date);\r\nconsole.log(date instanceof Date);\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"\uc18d\uc131\uc744 \uac70\uc9c0\ub294 \ud568\uc218 \ud0c0\uc785 \uc815\uc758 (\uc815\ud655\ud788\ub294 \ud638\ucd9c \uc2dc\uadf8\ub2c8\ucc98(call signature)) type FunctionWithProperties = { (someArg: number): boolean; description: string; }; function doSomething(fn: FunctionWithProperties) { console.log(fn.description + “: \uacb0\uacfc = ” + fn(6)); } \/\/ \ud568\uc218 \uc0dd\uc131 const isGreaterThanFive: FunctionWithProperties = (num: number) => { return num > 5; }; \/\/ \uc18d\uc131 \ucd94\uac00 isGreaterThanFive.description = “5\ubcf4\ub2e4 \ud070\uc9c0 … <\/p>\n