array to string javascript without commas

1arr.join("")

1[1, 2, 3].join(""); // 123

1[1, 2, 3].join(""); // 123
2

1var str = array.join(' '); //'apple tree'
2// separator ---------^
3

1let numbers = [0, 1, 2, 3];
2let numbersToString = numbers.toString();
3
4console.log(numbersToString);
5// output is "0,1,2,3"