const str = "2.809 -36.91 21.487 -493.808 5034.7001";
const tokens = str.split(' ');
const floats = [];
for (let i = 0; i < tokens.length; i++) {
const f = parseFloat(tokens[i]);
console.log(f);
floats.push(f);
}
/*
run:
2.809
-36.91
21.487
-493.808
5034.7001
*/