arrays - 在 Array Angular 和 Typescript 中查找最小和最大元素

Question

你好，我有数组，我需要执行各种操作，如求和、总计、平均值。所有这 3 个都实现了，现在我需要找到数组中的最小值和最大值。我被困在下面是代码。

下面是TS部分

people: Array<number> = [1, 2, 3, 4, 5];
  total: number = 0;
  arrayLength: number = this.people.length;
  average: number = 0;

  sum() {
    for (var i in this.people) { this.total += this.people[i]; }
  }

  ngOnInit() {
    this.sum();
    this.average = (this.total / this.arrayLength);
  }

下面是HTML部分

<span *ngFor="let p of people" style="font-size:18px">{{p}} </span><br><br>
<button >Quantity</button> = {{arrayLength}}<Br><br>
<button >Average</button> = {{average}}<Br><br>
<button >Sum</button> <span *ngIf="sumShow"> = {{total}}</span><Br><br>

Answer 1

将Math.max 和Math.min 与展开运算符结合使用。

get max() {
  return Math.max(...this.people);
}

get min() {
  return Math.min(...this.people);
}