X-Git-Url: https://git.ladys.computer/Pisces/blobdiff_plain/4895d39790c88da109d29959ca026c666669e6f3..HEAD:/numeric.js diff --git a/numeric.js b/numeric.js index f5bc738..079e56e 100644 --- a/numeric.js +++ b/numeric.js @@ -8,6 +8,7 @@ // file, You can obtain one at . import { call, createArrowFunction } from "./function.js"; +import { defineOwnDataProperty } from "./object.js"; import { stringCatenate, stringPadEnd, @@ -15,129 +16,14 @@ import { substring, toString, } from "./string.js"; -import { sameValue, toPrimitive } from "./value.js"; - -export const { - /** - * ln(10). - * - * ※ This is an alias for `Math.LN10`. - */ - LN10, - - /** - * ln(2). - * - * ※ This is an alias for `Math.LN2`. - */ - LN2, - - /** - * log10(ℇ). - * - * ※ This is an alias for `Math.LOG10E`. - */ - LOG10E: LOG10ℇ, - - /** - * log2(ℇ). - * - * ※ This is an alias for `Math.LOG2E`. - */ - LOG2E: LOG2ℇ, - - /** - * sqrt(½). - * - * ※ This is an alias for `Math.SQRT1_2`. - */ - SQRT1_2: RECIPROCAL_SQRT2, - - /** - * sqrt(2). - * - * ※ This is an alias for `Math.SQRT2`. - */ - SQRT2, - - /** - * The mathematical constant π. - * - * ※ This is an alias for `Math.PI`. - */ - PI: Π, - - /** - * The Euler number. - * - * ※ This is an alias for `Math.E`. - */ - E: ℇ, -} = Math; - -export const { - /** - * The largest number value less than infinity. - * - * ※ This is an alias for `Number.MAX_VALUE`. - */ - MAX_VALUE: MAXIMUM_NUMBER, - - /** - * 2**53 - 1. - * - * ※ This is an alias for `Number.MAX_SAFE_INTEGER`. - */ - MAX_SAFE_INTEGER: MAXIMUM_SAFE_INTEGRAL_NUMBER, - - /** - * The smallest number value greater than negative infinity. - * - * ※ This is an alias for `Number.MIN_VALUE`. - */ - MIN_VALUE: MINIMUM_NUMBER, - - /** - * -(2**53 - 1). - * - * ※ This is an alias for `Number.MIN_SAFE_INTEGER`. - */ - MIN_SAFE_INTEGER: MINIMUM_SAFE_INTEGRAL_NUMBER, - - /** - * Negative infinity. - * - * ※ This is an alias for `Number.NEGATIVE_INFINITY`. - */ +import { + NAN, NEGATIVE_INFINITY, - - /** - * Nan. - * - * ※ This is an alias for `Number.NaN`. - */ - NaN: NAN, - - /** - * Positive infinity. - * - * ※ This is an alias for `Number.POSITIVE_INFINITY`. - */ POSITIVE_INFINITY, - - /** - * The difference between 1 and the smallest number greater than 1. - * - * ※ This is an alias for `Number.EPSILON`. - */ - EPSILON: Ε, -} = Number; - -/** Negative zero. */ -export const NEGATIVE_ZERO = -0; - -/** Positive zero. */ -export const POSITIVE_ZERO = 0; + sameValue, + toPrimitive, + UNDEFINED, +} from "./value.js"; /** * Returns the magnitude (absolute value) of the provided value. @@ -434,11 +320,11 @@ export const log2 = createArrowFunction(Math.log2); * big·int. */ export const max = Object.defineProperties((...$s) => { - let highest = undefined; + let highest = UNDEFINED; for (let i = 0; i < $s.length; ++i) { // Iterate over all the numbers. const number = toNumeric($s[i]); - if (highest === undefined) { + if (highest === UNDEFINED) { // The current number is the first one. if (isNan(number)) { // The current number is nan. @@ -458,7 +344,7 @@ export const max = Object.defineProperties((...$s) => { } else if (sameValue(number, 0) && sameValue(highest, -0)) { // The current number is +0 and the highest number is -0. highest = 0; - } else if (highest === undefined || number > highest) { + } else if (number > highest) { // The current number is greater than the highest number. highest = number; } else { @@ -469,7 +355,10 @@ export const max = Object.defineProperties((...$s) => { } } return highest ?? NEGATIVE_INFINITY; -}, { name: { value: "max" }, length: { value: 2 } }); +}, { + name: defineOwnDataProperty(Object.create(null), "value", "max"), + length: defineOwnDataProperty(Object.create(null), "value", 2), +}); /** * Returns the lowest value of the provided arguments, or positive @@ -483,11 +372,11 @@ export const max = Object.defineProperties((...$s) => { * big·int. */ export const min = Object.defineProperties((...$s) => { - let lowest = undefined; + let lowest = UNDEFINED; for (let i = 0; i < $s.length; ++i) { // Iterate over all the numbers. const number = toNumeric($s[i]); - if (lowest === undefined) { + if (lowest === UNDEFINED) { // The current number is the first one. if (isNan(number)) { // The current number is nan. @@ -519,7 +408,10 @@ export const min = Object.defineProperties((...$s) => { } } return lowest ?? POSITIVE_INFINITY; -}, { name: { value: "min" }, length: { value: 2 } }); +}, { + name: defineOwnDataProperty(Object.create(null), "value", "min"), + length: defineOwnDataProperty(Object.create(null), "value", 2), +}); /** * Returns a pseudo·random value in the range [0, 1). @@ -667,12 +559,12 @@ export const { return call( numberToExponential, n, - [fractionDigits === undefined ? fractionDigits : f], + [fractionDigits === UNDEFINED ? fractionDigits : f], ); } else { const digits = call(bigintToString, n, [10]); const { length } = digits; - if (fractionDigits === undefined) { + if (fractionDigits === UNDEFINED) { return length === 1 ? `${digits[0]}e+0` : `${digits[0]}.${substring(digits, 1)}e+${length - 1}`;