JavaScript Number parseFloat() method

Definition and usage

Number.parseFloat() The method parses the value as a string and returns the first number.

Note:

If the first character cannot be converted to a number, it will return NaN.

Leading and trailing spaces will be ignored.

Only returns the first number found.

Instance

Example 1

Number.parseFloat(10);
Number.parseFloat("10");
Number.parseFloat("10.33");
Number.parseFloat("34 45 66");
Number.parseFloat("He was 40");

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Example 2

Number.parseFloat("40.00");
Number.parseFloat(" 40 ");
Number.parseFloat("40 years");
Number.parseFloat("40H")
Number.parseFloat("H40");

Try it yourself

Grammar

Number.parseFloat(value)

Parameter

Parameter ba'a
value Mandatory. The value to be parsed.

Return value

type ba'a
Boolean value haka ko anoma a hauwa NaN.

tambayawa kalla browseren suka

Number.parseFloat() wani ka tsakiyar ECMAScript6 (ES6) ka yanci.

Dalli nuna kalli browseren kei suka ES6 (JavaScript 2015):

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
Yayi Yayi Yayi Yayi Yayi

Internet Explorer 11 (tai daidai ko kuma yauwarwarar ɗaya) ba ta ɗaɗa ba Number.parseFloat().