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Extracting floats from strings

To get all float values from a sentence, we can first find them with a regular expression and then map over the matches with parseFloat.

// matches all integer or decimal substrings, like “69” or “4.20”
const numbersRegexp = new RegExp(/\d+(\.\d+)?/, 'g')

// finds all numbers matching the expression and transforms them to numbers
const getFloatsFrom = string => string.match(numbersRegexp).map(parseFloat)

getFloatsFrom("Put the 16 cupcakes in the oven (at 180°C) for 1.5 hours.")
// ⇒ [16, 180, 1.5]