Update price without refresh the page

Question

I am working on magento2 customization calculation functionality. In this i have width and gather two field is there in text field I have to calculation with product price eg. pricewidthgather like that. That i did successfully but problem is in magento 1 we use to update price use reloadPrice() function is use but in magento 2 which function are require for update a final price

Answer 1

before you call the new updated price html block make sure you reload the price block or price info by calling below code

$product->reloadPriceInfo();

that is

$product->setSpecialPrice(40); //you modified ant price  
$product->reloadPriceInfo(); //reload the price info
$this->getProductPrice($product); //display the price block 

How to reload the price programmatically in Magento 2

if it works accept the answer i helps others