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convert string into int

 
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hi there!!!
i have one problem....
i have a string which actually an integer...because it was selected from a string...
eg : i buy 2 cakes
the selected substring is 2(name as select)

i need to compare it...if select is less then 0....then it will instantiate to 0....where it will the gives the output as

i buy 0 cake...

the problem is....i cant do the comparison because 2 is not an integer...its a string.....
can anybody help me solve this problem
 
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Convert the String to an int and do the comparision
 
No prison can hold Chairface Chippendale. And on a totally different topic ... my stuff:
the value of filler advertising in 2021
https://coderanch.com/t/730886/filler-advertising
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