题解 | #直角三角形#
直角三角形
https://www.nowcoder.com/practice/7e8a7d83569d49aaa9bc4bb43a9d2d6e
var triangle = document.querySelector('.triangle');
// 补全代码
triangle.innerHTML = function () {
  let num = 1
  let content = ''
  while (num <= 3) {
	num++
	content += new Array(num).join('*')+ '<br/>'
  }
  return content
}()
