Adding 2 numbers

[everisk]

Hi,

 

I'm very new to Javascript and found a very strange behaviour when trying to add 2 numbers. DOnt know if i got everything right. Below is my code.

 

price = document.getElementById("price").value;
vat_p = (price*0.07)+price;
document.getElementById("price").value=vat_p;

 

 

Instead of adding (price*0.07) to price, price was appended to the result of (price*0.07).Help please~

[nogray]

use parseInt()

 

 

price = parseInt(document.getElementById('price').value, 10);

 

this will make sure the input is converted into an integer

[everisk]

oh thanks!

[epic_era1]

you could try this too

price*=1;
vat_p = (price*0.07)+price;