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问题描述
我有一个在TypeScript中创建的数组,它具有一个用作键的属性.如果我有该密钥,如何从中删除一个项目?
I have an array that I've created in TypeScript and it has a property that I use as a key. If I have that key, how can I remove an item from it?
推荐答案与JavaScript中的方法相同.
Same way as you would in JavaScript.
delete myArray[key];请注意,这会将元素设置为undefined.
Note that this sets the element to undefined.
更好地使用 Array.prototype.splice 函数:
Better to use the Array.prototype.splice function:
const index = myArray.indexOf(key, 0); if (index > -1) { myArray.splice(index, 1); }更多推荐
如何在TypeScript中删除数组项?
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