如何将单词数组转换成句子？

Question

给出一个很长很长的数组（一本300页的书的长度），概念上是这样的：

["我","是","拖拉机","学院","手","扶","拖拉机","专
业","的","。","不用","多久","，","我","就","会升",
"职加薪","，","当上","CEO","，","走上","人生",
"巅峰","。"]

如何有效地将此数组转换为以空格分隔的字符串？，例如：

var str =“我是拖拉机学院手扶拖拉机专业的。。不用多久，我就会升职职加薪，当上CEO，走上人生人生巅峰。”

---

编辑：

我目前有2种效率未知的演示方法：

// For loop
for (var i = 0; i < input.length; i++) { res = res +' '+input[i]; }; break;
//or
// JSON.stringify() + replace()
JSON.stringify(input).replace(/","|\["|"\]/g, ' ');

Answer 1

喜欢吗？

let arr = ["我","是","拖拉机","学院","手","扶","拖拉机","专业","的","。","不用","多久","，","我","就","会升",
"职加薪","，","当上","CEO","，","走上","人生",
"巅峰","。"]

console.log(arr.join(' '))