TypeScript Array Remove

定义一个数组

tags:any[];

方法1:filter 删除并不留空位

this.tags = this.tags.filter(tag => tag !== removedTag);

方法2:splice 删除并不留空位

const index = this.tags.indexOf(removedTag, 0); if (index > -1) { this.tags.splice(index, 1); }

方法3:remove 删除并留空位，会有empty占位

const index = this.tags.indexOf(removedTag, 0); if (index > -1) { delete this.tags[index]; }

示例代码

示例代码

参考资料

How do I remove an array item in TypeScript?Deleting array elements in JavaScript - delete vs splice

转载于:https://www.cnblogs.com/Lulus/p/10659270.html