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);