Number.parseFloat()
The Number.parseFloat()
method parses an argument and returns a floating point number. If a number cannot be parsed from the argument, it returns NaN
.
Syntax
Number.parseFloat(string)
Parameters
string
-
The value to parse. If this argument is not a string, then it is converted to one using the
ToString
abstract operation. Leading whitespace in this argument is ignored.
Return value
A floating point number parsed from the given string
.
Or NaN
when the first non-whitespace character cannot be converted to a number.
Examples
Number.parseFloat vs parseFloat
This method has the same functionality as the global parseFloat()
function:
Number.parseFloat === parseFloat; // true
This method is also part of ECMAScript 2015. (Its purpose is modularization of globals.)
See parseFloat()
for more detail and examples.
Specifications
Specification |
---|
ECMAScript Language Specification # sec-number.parsefloat |
Browser compatibility
BCD tables only load in the browser
See also
- Polyfill of
Number.parseFloat
incore-js
Number
: The object this method belongs to.- The global
parseFloat()
method.