Which Is Better To Use For A Calculator Parseint() Or Eval() In Javascript?

The numbers are in a input text field so when i retrieve it it is in a string. Which I can get the answer but would it be better to use parseInt.

Solution 1:

In general, avoid using eval, especially with user input. Arbitrary code execution is almost never what you wanted to do in the first place. As long as the use can't enter a decimal number, parseInt is the way to go.