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The answer is option C (float(x)). float(x) method converts x to a floating-point number.
The Python "ValueError: could not convert string to float" occurs when we pass a string that cannot be converted to a float (e.g. an empty string or one containing characters) to the float() class. To solve the error, remove all unnecessary characters from the string.
You can use the float() function to convert any data type into a floating-point number. This method only accepts one parameter. If you do not pass any argument, then the method returns 0.0. If the input string contains an argument outside the range of floating-point value, OverflowError will be generated.
Change
if err != nil {
to
if err == nil {
(You may be doing this already, but unit testing is a great way to catch bugs like this.)
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