concat() – Concatenate Two or More Arrays
array1.concat(array2)
array1.concat(array2, array3)
array1.concat(array2, array3,.., arrayN)
array1
,array2
,array3
,array4
, ..,arrayN
are arrays
concat() method takes one or more arrays as arguments, concatenates them with the calling array, and returns the resulting array. original array, or arrays passed as arguments remain unmodified
Examples
1. concatenate two arrays
const array1 = ['apple', 'banana', 'cherry'];
const array2 = ['mango', 'guava'];
const output = array1.concat(array2);
console.log(output);
2. concatenate three arrays
const array1 = ['apple', 'banana', 'cherry'];
const array2 = ['mango', 'guava'];
const array3 = ['orange', 'lemon'];
const output = array1.concat(array2, array3);
console.log(output);