--- tags: JS 2020 --- # 變數(Variable)與值(Value) ## 課程目標 * 宣告變數的方法:let、const、var * 基本型別(primitives types) 介紹 1. 字串 (String) 2. 數字 (Number) 3. 布林 (Boolean) 4. undefined 5. null 6. Symbol * 型別操作方法 > 除了基本型別外,後面還會講解物件型別,例如陣列(array)與物件(object)
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