Question

I have a string like 10+20*30-40/2. Is it possible to split this string and do calculations like + for addition, or * for multiplication?

Answer 1

You could do this very easily with the eval function…

var answer = eval("10+20*30-40/2");
alert(answer);

Here is a working example

But you should be careful, because if you are accepting user input for this string then it could be malicious.