how to change innerHtml by adding a integer value to element?

Question

I build a Scoreboard

what it does when someone click the +500 button it will add 500 to the value in the score board i.e it will add 500 to the value of p tag

Answer 1

Right now, you're adding an integer to a string, so you're making a string concatenation.

Change

 var value = newScore + 500;

to

 var value = parseInt(newScore,10) + 500;