如何删除数组中的空值？

@State arr: string[] = []
aboutToAppear(): void {
  this.arr.push("aa")
  this.arr.push("")
  this.arr.push("bb")
  console.log("----"+this.arr.toString())
  //删除空值
  this.arr = this.arr.filter((value) => value !== null && value !== undefined && value !== '');
  console.log("----"+this.arr.toString())
}