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Jennifer Ciaccio
UX Design Techdegree Student 11,137 PointsWhat about Number()?
There seems to be so many ways to do the same thing. From my understanding Number() would also provide the same results as the methods mentioned. Is that correct, and if so why would would we use Number() opposed to any of the others?
2 Answers
Steven Parker
229,708 PointsI assume you're comparing "Number" to "parseInt", and they are not quite the same. "Number" is a more primitive conversion and won't extract values from a compound string. For example:
var x = Number("123test"); // this produces NaN
var y = parseInt("123test"); // but this produces 123
Also, "parseInt" takes an optional second argument to allow it to convert from a radix other than decimal.
For more details, see the MDN pages (my favorite go-to reference) on Number and parseInt.
Jennifer Ciaccio
UX Design Techdegree Student 11,137 PointsI had read the Number () MDN, but I don't think I had understood that part of it. Thank you for explaining it!