convert string to double python code example

Example 1: javascript convert string to float

// parseFloat takes in a string value and converts it to a float 
// The parseFloat function will look at the first character of
// the string and decided whether that character is a number or not
// If not the parseFloat function will return Nan

let stringNumber = "8.0"

let floatNuumber = parseFloat(stringNumber);

Example 2: cast string to double python

x = "2342.34"
float(x) #2342.3400000000001

Example 3: string to float python

# Use the function float() to turn a string into a float
string = '123.456'
number = float(string)
number
# Output:
# 123.456

Example 4: how to convert a string to a double c++

double new = std::stod(string);