Đã Đóng

JavaScript ISBN with Jasmine unit test

ISBN - International Standard Book Number

-----------------------------------------

There are two ISBN standards: ISBN-10 and ISBN-13.

Support for ISBN-13 is essential, whereas support

for ISBN-10 is optional.

Here are some valid examples of each:

ISBN-10: 0471958697

0 471 60695 2

0-470-84525-2

0-321-14653-0

ISBN-13: 9780470059029

978 0 471 48648 0

978-0596809485

978-0-13-149505-0

978-0-262-13472-9

ISBN-10 is made up of 9 digits plus a check digit (which

may be 'X') and ISBN-13 is made up of 12 digits plus a

check digit. Spaces and hyphens may be included in a code,

but are not significant. This means that 9780471486480 is

equivalent to 978-0-471-48648-0 and 978 0 471 48648 0.

The check digit for ISBN-10 is calculated by multiplying

each digit by its position (i.e., 1 x 1st digit, 2 x 2nd

digit, etc.), summing these products together and taking

modulo 11 of the result (with 'X' being used if the result

is 10).

The check digit for ISBN-13 is calculated by multiplying

each digit alternately by 1 or 3 (i.e., 1 x 1st digit,

3 x 2nd digit, 1 x 3rd digit, 3 x 4th digit, etc.), summing

these products together, taking modulo 10 of the result

and subtracting this value from 10, and then taking the

modulo 10 of the result again to produce a single digit.

Basic task:

Create a function that takes a string and returns true

if that is a valid ISBN-13 and false otherwise.

Also return true if the string is a valid ISBN-10 and write unit test in [login to view URL]

Kĩ năng: Jasmine Javascript, Javascript

Xem nhiều hơn: javascript unit testing, test-driven javascript development, jasmine node documentation, javascript testing with jasmine: javascript behavior-driven development, jasmine javascript testing, javascript isbn check, unit test web service originator, unit test excel database vbnet, unit test symbian modules, tibco unit test, test names unit test data, 4gl unit test, unit test concurrent requests struts hibernate, bash script unit test, unit test ipc, shell unit test bsd linux unix, bash script unit test harness, google gwt spring unit test, java unit test pdf creation creator, recreate unit test visual studio

Về Bên Thuê:
( 1 Nhận xét ) Riverside, United States

ID dự án: #18783293

1 freelancer đang chào giá trung bình $30 cho công việc này

MaksimStepanov17

Hi. I've just read your project in details. Thank for your kind explanation. I've made simple project already for you. I need one more case to complete your project. Case that has checksum value 10 in ISBN10. I'm a Thêm

$30 USD trong 1 ngày
(0 Nhận xét)
0.0