js中如何把数组中的元素拼接成一个字符串？例如把["x","y"]变成"x,y"?

Question

怎样把["x","y"]变成"x,y"？

Answer 1

['x', 'y'].join(',')

Answer 2

• ['x', 'y'].toString();
• ['x', 'y'].join(',');

Answer 3

['x','y'].join(',')

Answer 4

["x","y"].join(",");

Answer 5

join(",")

Answer 6

['x','y'].join(',')

Answer 7

['x', 'y'].join()