JavaScript Number toFixed() method

definition and usage

toFixed() method converts number to string.

toFixed() The method rounds the string to the specified decimal places.

Note:if the decimal places are higher than the number, add zeros.

instance

Example 1

let num = 5.56789;
let n = num.toFixed();

try it yourself

Example 2

let num = 5.56789;
let n = num.toFixed(2);

try it yourself

Example 3

round to 10 decimal places:

let num = 5.56789;
let n = num.toFixed(10);

try it yourself

syntax

number.toFixed(digits)

parameter

parameter description
digits

optional. Decimal places. Values between 0 ~ 20, including 0 and 20.

default is 0 (no decimal).

return value

type description
string with (or without) decimal numbers.

technical details

return value

return number string representation, not using exponential notation, with a fixed decimal point after digits digits.

if necessary, the number will be rounded or zero-filled to reach the specified length.

if digits if greater than le+21, then this method only calls number.toString(), ana gina littafin da ke amfani da kwayar yadda a baya.

throw

exception description
RangeError

wanda digits tai yau ko wanda ya kai tsaye kashi.

0 ~ 20 之间 wanda ba kashi na shirya. Daga kade, wasu kuma suka suka kashi yau wanda ya kai tsaye ko 0 ~ 20. Daga kade, wasu kuma suka suka kashi yau wanda ya kai tsaye ko 0 ~ 20.
TypeError wanda baiyar da kasa wanda ba Number ne, ana shirya kashi.

browser support

Number.constructor wani ne ECMAScript3 (ES3) irinshi.

所有浏览器都完全支持 ES3 (JavaScript 1999)：

Chrome IE Edge Firefox Safari Opera
Chrome IE Edge Firefox Safari Opera
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