Javascript typeScript 中有析构函数吗
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Is there destructor in typeScript
提问by Gábor Lupák
Is there destructor in TypeScript? If not, how can I delete an object?
I tried destructor()and ~ClassName()but it didn't work.
TypeScript 中有析构函数吗？如果没有，如何删除对象？我试过了destructor()，~ClassName()但没有用。
回答by Ryan Cavanaugh
JavaScript uses garbage collection to automatically delete objects when they are no longer referenced. There is no concept of destructors or finalizers.
JavaScript 使用垃圾回收来自动删除不再被引用的对象。没有析构函数或终结器的概念。
You can't observe when an object is deleted by the garbage collector, nor is it predictable.
您无法观察垃圾收集器何时删除对象，也无法预测。
回答by Thomas Thornier
You can actually
你实际上可以
class MyClass {
constructor(input1, input2){
this.in1 = input1;
this.in2 = input2;
}
}
let myObject = {};
try {
myObject = {
classHandler: new MyClass('1','2')
}
} catch (e) {
} finally {
delete myObject.classHandler
}
