Use JavaScript parseFloat() method to convert a string into float. This method parses a value as a string and returns the first number.
Note: If the first character cannot be converted, NaN is returned.
JavaScript string to float
Simple example code.
<!DOCTYPE html>
<html>
<body>
<script>
console.log(parseFloat(10));
console.log(("10"));
console.log(("10.00"));
console.log(("100 200 300"));
console.log(("Age 40"));
</script>
</body>
</html> Output:
How to convert a string into a float in JavaScript?
Answer: Get the numbers after the comma.
var values = "554,20".split(",")
var v1 = parseFloat(values[0])
var v2 = parseFloat(values[1])
If they’re meant to be a single value (like in French, where one-half is written 0,5)
var value = parseFloat("554,20".replace(",", "."));Do comment if you have any doubts or suggestions on this JS string conversion.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version