This libruary - is an angular factory, which exports parcer function that takes a string value end returns an array with the palindromes sorted by length.

you will need pre-installed npm to run application - execute following command at the root folder

npm start

then open in browser http://localhost:8000/

to run unit test - execute following command at the root folder

npm test

Test 1 verifies that function returns an empty array, string value is 123 without palindromes.

Test 2 verifies that function returns an array, where there first element will be abxyzyxba, string value is yabxyzyxba1.

Test 3 verifies that function returns an array of four elements, string value is yabxyzyxba1.

Test 4 verifies that function returns an array where the length of the first element greater than the second, string value is yabxyzyxba1.