JavaScript Array concat() Method

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JavaScript Array concat() Method

The concat() method is used to join two or more arrays.

Note: This method does not alter the existing arrays, but returns a new array, containing the values of the joined arrays.

Concatenating Two Arrays


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<!DOCTYPE html> <html> <body> <script> var set1 = ["One", "Two"]; var set2 = ["Three", "Four"]; var result = []; // Concatenate two arrays result = set1.concat(set2); document.write(result); </script> </body> </html>


Array1.concat(array2, array3, ...., arrayN)

Parameter Values

array2..arrayNRequiredArrays to concatenate into a new array.

Concatenating More than Two Arrays

Note: Use comma-separator when joining more than two arrays.


HTML Online Editor
<!DOCTYPE html> <html> <body> <script> var set1 = ["One", "Two"]; var set2 = ["Three", "Four"]; var set3 = ["Five", "Six"]; var result = []; // Concatenate multiple arrays result = set1.concat(set2, set3); document.write(result); </script> </body> </html>


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