If you are referring to checking if the string contains function call by searching for "()", no it won't work because there are way too many scenarios. Consider a case when there are spaces in between the parenthesis, e.g. foo( ) and your code will then allow it to run. It will be better if you only allow whitelisted characters. However, it will still take unnecessary effort and still potentially cause the program to hang (if you are going to search/parse the whole string which can be very long). So just use the built-in functions that work just fine and don't reinvent the wheel, which is something stupid.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Potentially, but can't you check the string for functions using 'str.includes("()")'?
If you are referring to checking if the string contains function call by searching for
"()", no it won't work because there are way too many scenarios. Consider a case when there are spaces in between the parenthesis, e.g.foo( )and your code will then allow it to run. It will be better if you only allow whitelisted characters. However, it will still take unnecessary effort and still potentially cause the program to hang (if you are going to search/parse the whole string which can be very long). So just use the built-in functions that work just fine and don't reinvent the wheel, which is something stupid.