賦值運算符 · JavaScript學習記錄

### 賦值運算符賦值元素符會將右邊的操作數的值分配給左邊的操作數，并將其值修改為右邊操作數相等的值。 - [`=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Assignment) 賦值運算符。 - [`*=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Multiplication_assignment) 賦值乘積。 - [`/=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Division_assignment) 賦值商。 - [`%=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Remainder_assignment) 賦值求余。 - [`+=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Addition_assignment) 賦值求和。 - [`-=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Subtraction_assignment) 賦值求差。 - [`<<=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Left_shift_assignment) 左位移。 - [`>>=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Right_shift_assignment) 右位移。 - [`>>>=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Unsigned_right_shift_assignment) 無符號右位移。 - [`&=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Bitwise_AND_assignment) 賦值與。 - [`^=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Bitwise_XOR_assignment) 賦值按位異或。 - [`|=`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Assignment_Operators#Bitwise_OR_assignment) 賦值或。 - [`[a, b\] = [1, 2]`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment) [`{a, b} = {a:1, b:2}`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment) 解構賦值允許你分配數組或者對象變量的屬性通過使用規定的語法，其看起來和數組和對象字面量很相似。 - 逗號操作符 - [`,`](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Operators/Comma_Operator) 逗號操作符允許在一個判斷狀態中有多個表達式去進行運算并且最后返回最后一個表達式的值。