javascript array to string without commas

1arr.join("")

1// array.join(separator)
2
3var myArray ['foo', 'bar', 'baz'];
4myarray.join(':');
5// foo:bar:baz

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"