[英]How to make a global destructuring form this in class?
例如,我正在嘗試在課堂上對此進行全局解構
class Car {
constructor(
color,
speed,
type,
) {
this.color = color;
this.speed = speed;
this.type = type;
}
method1() {
const { color, speed, type } = this;
// do something with speed, color, type;
}
method2() {
const { color, speed, type } = this;
// do another thing with speed, color, type;
}
method3() {
const { color, speed, type } = this;
// do another thing with speed, color, type;
}
}
不是在每個方法中解構它,而是有一種方法可以將其作為所有方法的全局
在每個方法中,我只是引用變量而不是調用它
不,那里沒有。 如果你想在每個方法中創建局部變量,你不能全局這樣做。
唯一的選擇是不使用class
而是使用工廠函數,該函數在構造函數參數上構建閉包:
function Car(color, speed, type) {
return {
get color() { return color; },
get speed() { return speed; },
get type() { return type; },
method1() {
// do something with speed, color, type;
},
method2() {
// do another thing with speed, color, type;
},
method3() {
// do another thing with speed, color, type;
}
};
}
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