// join an array together into a string
// array for the .join() method
let numbers = [3, 1, 6]
let string = numbers.join(', ') // returns '3, 1, 6'
// Also works the same just for an array of STRINGS
const elements = ['Sun', 'Earth', 'Moon'];
console.log(elements.join());
// output: "Sun,Earth,Moon"
console.log(elements.join(''));
// output: "SunEarthMoon"
console.log(elements.join('-'));
// output: "Sun-Earth-Moon"
var arr1 = new int[]{1,2,3,4,5,6};
var arr2 = new int[]{7,8,9,0};
var joinedArray = arr1.Concat(arr2);
var array = ["Joe", "Kevin", "Peter"];
array.join(); // "Joe,Kevin,Peter"
array.join("-"); // "Joe-Kevin-Peter"
array.join(""); // "JoeKevinPeter"
array.join(". "); // "Joe. Kevin. Peter"
//turns array to string
const elements = ['Fire', 'Air', 'Water'];
console.log(elements.join());
// expected output: "Fire,Air,Water"
console.log(elements.join(''));
// expected output: "FireAirWater"
console.log(elements.join('-'));
// expected output: "Fire-Air-Water"
const array = [0, 1, 2, 3, 4, 5];
/*
Array.prototype.join(separator);
Converts each element of the array into a string
and joins each element into one long string with
each element separated by the separator.
*/
const string1 = array.join("");
console.log(string1); // -> 012345
const string2 = array.join(",");
console.log(string2); // -> 0,1,2,3,4,5
const string3 = array.join(", ");
console.log(string3); // -> 0, 1, 2, 3, 4, 5
public static string Join(string separator, params obj[] array);
object[] array = {"Hello", 12345, 786};
string s1 = string.Join(", ", array);
//The join() method also joins all array elements into a string.
const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.join(" * ");
// result : Banana * Orange * Apple * Mango
//if you find this answer is useful ,
//upvote ⇑⇑ , so can the others benefit also . @mohammad alshraideh ( ͡~ ͜ʖ ͡°)
const elements = ['Fire', 'Air', 'Water'];
console.log(elements.join());
// expected output: "Fire,Air,Water"
console.log(elements.join(''));
// expected output: "FireAirWater"
console.log(elements.join('-'));
// expected output: "Fire-Air-Water"
var a = ['Wind', 'Water', 'Fire'];
a.join(); // 'Wind,Water,Fire'
a.join(', '); // 'Wind, Water, Fire'
a.join(' + '); // 'Wind + Water + Fire'
a.join(''); // 'WindWaterFire'
['h', 'e', 'y'].join('')
// hey
<html>
<select multiple class="select-colors">
<option>blue</option>
<option>green</option>
</select>
</html>
<script>
var myColorSelect = $(".select-colors").val().join();
console.log(myColorSelect);
</script>
const cities = ['London', 'Paris', 'Tokyo'];
const joinedCities = cities.join('-');
console.log(joinedCities); // London-Paris-Tokyo