,concat javascrtip

Príklady kódu

11
0

N

var str1 = "Hello ";
var str2 = "world!";
var res = str1.concat(str2);
console.log(res);
6
0

N

const array1 = ['a', 'b', 'c'];
const array2 = ['d', 'e', 'f'];
const array3 = array1.concat(array2);

console.log(array3);
// expected output: Array ["a", "b", "c", "d", "e", "f"]

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