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I need to convert a string to a floating point value or an integer. There was no method such as,
string_to_integer 
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Idiom #22 Convert string to integerint i = int. Parse(s); Throws an error if s can't be converted. int can be replaced with any number data type.
We can convert a string to float in Python using float() function. It's a built-in function to convert an object to floating point number. Internally float() function calls specified object __float__() function.
Use trunc(2.0) or round(2.0) . Those are auto-imported since they are part of Kernel and they are also allowed in guard clauses. FWIW: round/1 still returns a Float at this point -- trunc/1 will convert to Integer.
Numbers in Elixir Elixir recognizes two kinds of numbers: integers and floating point numbers (often called floats).
Check Integer.parse/1 and Float.parse/1.
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In addition to the Integer.parse/1 and Float.parse/1 functions which José suggested you may also check String.to_integer/1 and String.to_float/1.
Hint: See also to_atom/1,to_char_list/1,to_existing_atom/1for other conversions.
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