javascript - Magneto 2 not getting custome option price calculation on catalog product view page -

i newly start work on magento 2. have active bellow functionality,

http://www.netcurtain2curtains.co.uk/lady-jayne-white-net-curtain-inspired-by-nottingham-lace.html

i implimenting functionality 1.9 have no idea how in magento2.

please share idea me can short out problem

thanks in advance.

in magento2 can set different price child products of simple product. please make 'size' product attribute , set different price according size.