Coerces a raw value to a finite number, or undefined if it cannot be parsed (wrong type, NaN, ±Infinity).
undefined
Accepts both number and string inputs; all other types return undefined.
number
string
Coerces a raw value to a finite number, or
undefinedif it cannot be parsed (wrong type, NaN, ±Infinity).Accepts both
numberandstringinputs; all other types returnundefined.