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Challenge/DahyunLim/3.type/README.md
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+# 문제3 : 변수의 타입
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+
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+다음 출력 값으로 올바른 것은?
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+```jsx
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+var arr = [100, 200, 300];
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+console.log(typeof(arr));
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+```
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+1) undefined
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+2) string
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+3) number
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+4) object
Challenge/DahyunLim/3.type/solve.js
+// # 문제3 : 변수의 타입
+// 다음 출력 값으로 올바른 것은?
+console.log(typeof (arr));
+// 1) undefined
+// 2) string
+// 3) number
+// 4) object
+// 정답 4번
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