Number

Overview

Number values represent floating-point numbers.

For more information see: Number (MDN).

Properties Summarized

Type
Name
Summary

The largest representable number.

The smallest representable number.

Special value representing negative infinity; returned on overflow.

Special "not a number" value.

Special value representing infinity; returned on overflow.

Methods Summarized

Type
Name
Summary

Returns a string representing the number in exponential notation.

Returns a string representing the number in exponential notation.

Returns a string representing the number in fixed-point notation.

Returns a string representing the number in fixed-point notation.

Converts the number into a string which is suitable for presentation in the given locale.

Returns a string representing the number to a specified precision in fixed-point or exponential notation.

Returns a string representing the number to a specified precision in fixed-point or exponential notation.

Returns a string representing the specified Number object.

Returns a string representing the specified Number object.

Properties Detailed

MAX_VALUE

The largest representable number.

Type Number

Sample

MIN_VALUE

The smallest representable number.

Type Number

Sample

NEGATIVE_INFINITY

Special value representing negative infinity; returned on overflow.

Type Number

Sample

NaN

Special "not a number" value.

Type Object

Sample

POSITIVE_INFINITY

Special value representing infinity; returned on overflow.

Type Number

Sample

Methods Detailed

toExponential()

Returns a string representing the number in exponential notation.

Returns: String A string representing the number in exponential notation.

Sample

toExponential(fractionDigits)

Returns a string representing the number in exponential notation.

Parameters

  • Number fractionDigits An integer specifying the number of digits after the decimal point. Defaults to as many digits as necessary to specify the number.

Returns: String A string representing the number in exponential notation.

Sample

toFixed()

Returns a string representing the number in fixed-point notation.

Returns: String A string representing the number in fixed-point notation.

Sample

toFixed(digits)

Returns a string representing the number in fixed-point notation.

Parameters

  • Number digits The number of digits to appear after the decimal point. Defaults to 0.

Returns: String A string representing the number in fixed-point notation.

Sample

toLocaleString()

Converts the number into a string which is suitable for presentation in the given locale.

Returns: String A string representing the number in the current locale.

Sample

toPrecision()

Returns a string representing the number to a specified precision in fixed-point or exponential notation.

Returns: String A string representing the number to a specified precision in fixed-point or exponential notation.

Sample

toPrecision(precision)

Returns a string representing the number to a specified precision in fixed-point or exponential notation.

Parameters

  • Number precision An integer specifying the number of significant digits.

Returns: String A string representing the number to a specified precision in fixed-point or exponential notation.

Sample

toString()

Returns a string representing the specified Number object.

Returns: String A string representing the specified Number object.

Sample

toString(radix)

Returns a string representing the specified Number object.

Parameters

  • Number radix An integer between 2 and 36 specifying the base to use for representing numeric values

Returns: String A string representing the specified Number object.

Sample


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