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2024年4月24日发(作者：aptana最上方的导航栏不见了)

js tofixed规则

英文回答：

JavaScript's `toFixed()` method is used to format a

number to a specific number of decimal places. It takes two

arguments:

`value`: The number to be formatted.

`digits`: The number of decimal places to round to.

The `toFixed()` method will round the number to the

specified number of decimal places and return a string

representation of the formatted number.

For example, the following code will round the number

3.14159 to 2 decimal places and return the string "3.14":

js.

const num = 3.14159;

const formattedNum = d(2);

(formattedNum); // Output: "3.14"

If the specified number of decimal places is greater

than the number of decimal places in the original number,

the `toFixed()` method will add trailing zeros to the

formatted number.

For example, the following code will round the number 3

to 5 decimal places and return the string "3.00000":

js.

const num = 3;

const formattedNum = d(5);

(formattedNum); // Output: "3.00000"


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