Be concise.

Be useful.

All contributions dictatorially edited by webmasters to match personal tastes.

Please do not paste any copyright violating resource.

Please try to avoid dependencies to third-party libraries and frameworks.

Other implementations
import "strconv"
f, err := strconv.ParseFloat(s, 64)
f = s.to_f
f = float(s)
f := StrToFloat(s);
let f = s.parse::<f32>().unwrap();
read s :: Double
import std.conv;
float f =!float;
f = num.parse(s);
uses sysutils;
f := s.ToExtended;
$f = floatval($s);
let f = +s