Pezkuwi API
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    Class Float

    Float

    A Codec wrapper for F32 & F64 values. You generally don't want to be using f32/f64 in your runtime, operations on fixed points numbers are preferable. This class was explicitly added since scale-codec has a flag that enables this and it is available in some eth_* RPCs

    Hierarchy (View Summary)

    Implements

    • IFloat
    Index
    constructor
    createdAtHash? encodedLength initialU8aLength? isStorageFallback? registry EPSILON MAX_SAFE_INTEGER MAX_VALUE MIN_SAFE_INTEGER MIN_VALUE NaN NEGATIVE_INFINITY POSITIVE_INFINITY
    hash isEmpty
    eq inspect toExponential toFixed toHex toHuman toJSON toLocaleString toNumber toPrecision toPrimitive toRawType toString toU8a valueOf isFinite isInteger isNaN isSafeInteger parseFloat parseInt with

    • Parameters

      • registry: Registry
      • Optionalvalue: AnyFloat
      • __namedParameters: Options = {}

      Returns Float

    createdAtHash?: IU8a

    The block at which this value was retrieved/created (set to non-empty when retrieved from storage)

    encodedLength: number

    The length of the value when encoded as a Uint8Array

    initialU8aLength?: number

    The length of the initial encoded value (Only available when the value was constructed from a Uint8Array input)

    isStorageFallback?: boolean

    (internal usage) Indicates that the value was created via a fallback. This is used when with data specified in the metadata when the storage entry is empty.

    With metadata fallback values (available as defaults on most storage entries) any empty storage item should erturn the default. (This is the same as the implementation on the Bizinikiwi runtime)

    registry: Registry

    The registry associated with this object

    EPSILON: number

    The value of Number.EPSILON is the difference between 1 and the smallest value greater than 1 that is representable as a Number value, which is approximately: 2.2204460492503130808472633361816 x 10‍−‍16.

    MAX_SAFE_INTEGER: number

    The value of the largest integer n such that n and n + 1 are both exactly representable as a Number value. The value of Number.MAX_SAFE_INTEGER is 9007199254740991 2^53 − 1.

    MAX_VALUE: number

    The largest number that can be represented in JavaScript. Equal to approximately 1.79E+308.

    MIN_SAFE_INTEGER: number

    The value of the smallest integer n such that n and n − 1 are both exactly representable as a Number value. The value of Number.MIN_SAFE_INTEGER is −9007199254740991 (−(2^53 − 1)).

    MIN_VALUE: number

    The closest number to zero that can be represented in JavaScript. Equal to approximately 5.00E-324.

    NaN: number

    A value that is not a number. In equality comparisons, NaN does not equal any value, including itself. To test whether a value is equivalent to NaN, use the isNaN function.

    NEGATIVE_INFINITY: number

    A value that is less than the largest negative number that can be represented in JavaScript. JavaScript displays NEGATIVE_INFINITY values as -infinity.

    POSITIVE_INFINITY: number

    A value greater than the largest number that can be represented in JavaScript. JavaScript displays POSITIVE_INFINITY values as infinity.

    • Parameters

      • Optionalother: unknown

      Returns boolean

      Compares the value of the input to see if there is a match

    • Returns a string containing a number represented in exponential notation.

      Parameters

      • OptionalfractionDigits: number

        Number of digits after the decimal point. Must be in the range 0 - 20, inclusive.

      Returns string

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

      Parameters

      • OptionalfractionDigits: number

        Number of digits after the decimal point. Must be in the range 0 - 20, inclusive.

      Returns string

    • Returns string

      Converts the Object to to a human-friendly JSON, with additional fields, expansion and formatting of information

    • Converts a number to a string by using the current or specified locale.

      Parameters

      • Optionallocales: string | string[]

        A locale string or array of locale strings that contain one or more language or locale tags. If you include more than one locale string, list them in descending order of priority so that the first entry is the preferred locale. If you omit this parameter, the default locale of the JavaScript runtime is used.

      • Optionaloptions: NumberFormatOptions

        An object that contains one or more properties that specify comparison options.

      Returns string

    • Converts a number to a string by using the current or specified locale.

      Parameters

      • Optionallocales: LocalesArgument

        A locale string, array of locale strings, Intl.Locale object, or array of Intl.Locale objects that contain one or more language or locale tags. If you include more than one locale string, list them in descending order of priority so that the first entry is the preferred locale. If you omit this parameter, the default locale of the JavaScript runtime is used.

      • Optionaloptions: NumberFormatOptions

        An object that contains one or more properties that specify comparison options.

      Returns string

    • Returns a string containing a number represented either in exponential or fixed-point notation with a specified number of digits.

      Parameters

      • Optionalprecision: number

        Number of significant digits. Must be in the range 1 - 21, inclusive.

      Returns string

    • Returns a string representation of an object.

      Parameters

      • Optionalradix: number

        Specifies a radix for converting numeric values to strings. This value is only used for numbers.

      Returns string

    • Parameters

      • Optional_isBare: boolean

      Returns Uint8Array

      Encodes the value as a Uint8Array as per the SCALE specifications

    • Returns the primitive value of the specified object.

      Returns number

    • Returns true if passed value is finite. Unlike the global isFinite, Number.isFinite doesn't forcibly convert the parameter to a number. Only finite values of the type number, result in true.

      Parameters

      • number: unknown

        A numeric value.

      Returns boolean

    • Returns true if the value passed is an integer, false otherwise.

      Parameters

      • number: unknown

        A numeric value.

      Returns boolean

    • Returns a Boolean value that indicates whether a value is the reserved value NaN (not a number). Unlike the global isNaN(), Number.isNaN() doesn't forcefully convert the parameter to a number. Only values of the type number, that are also NaN, result in true.

      Parameters

      • number: unknown

        A numeric value.

      Returns boolean

    • Returns true if the value passed is a safe integer.

      Parameters

      • number: unknown

        A numeric value.

      Returns boolean

    • Converts a string to a floating-point number.

      Parameters

      • string: string

        A string that contains a floating-point number.

      Returns number

    • Converts A string to an integer.

      Parameters

      • string: string

        A string to convert into a number.

      • Optionalradix: number

        A value between 2 and 36 that specifies the base of the number in string. If this argument is not supplied, strings with a prefix of '0x' are considered hexadecimal. All other strings are considered decimal.

      Returns number

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