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@fable-org/fable-library-js

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Core library used by F# projects compiled with fable.io

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import { Exception, comparePrimitives, padLeftAndRightWithZeros, padWithZeros } from "./Util.js"; import { toInt64, fromFloat64 } from "./BigInt.js"; /** * Calls: * - `Math.ceil` if the `value` is **negative** * - `Math.floor` if the `value` is **positive** * @param value Value to round */ function signedRound(value) { return value < 0 ? Math.ceil(value) : Math.floor(value); } export function create(d = 0, h = 0, m = 0, s = 0, ms = 0) { switch (arguments.length) { case 1: // ticks return fromTicks(arguments[0]); case 3: // h,m,s d = 0, h = arguments[0], m = arguments[1], s = arguments[2], ms = 0; break; default: // d,h,m,s,ms break; } return d * 86400000 + h * 3600000 + m * 60000 + s * 1000 + ms; } export function fromTicks(ticks) { return Number(BigInt(ticks) / 10000n); } export function fromDays(d, h = 0, m = 0n, s = 0n, ms = 0n) { return create(d, h, Number(m), Number(s), Number(ms)); } export function fromHours(h, m = 0n, s = 0n, ms = 0n) { return create(0, h, Number(m), Number(s), Number(ms)); } export function fromMinutes(m, s = 0n, ms = 0n) { return create(0, 0, Number(m), Number(s), Number(ms)); } export function fromSeconds(s, ms = 0n) { return create(0, 0, 0, Number(s), Number(ms)); } export function fromMilliseconds(ms) { return Number(ms); } export function days(ts) { return signedRound(ts / 86400000); } export function hours(ts) { return signedRound(ts % 86400000 / 3600000); } export function minutes(ts) { return signedRound(ts % 3600000 / 60000); } export function seconds(ts) { return signedRound(ts % 60000 / 1000); } export function milliseconds(ts) { return signedRound(ts % 1000); } export function ticks(ts) { return toInt64(fromFloat64(ts * 10000)); } export function totalDays(ts) { return ts / 86400000; } export function totalHours(ts) { return ts / 3600000; } export function totalMinutes(ts) { return ts / 60000; } export function totalSeconds(ts) { return ts / 1000; } export function negate(ts) { return ts * -1; } export function add(ts1, ts2) { return ts1 + ts2; } export function subtract(ts1, ts2) { return ts1 - ts2; } export function multiply(ts, factor) { return ts * factor; } export function divide(ts, b) { return ts / b; } export const op_Addition = add; export const op_Subtraction = subtract; export const op_Multiply = multiply; export const op_Division = divide; export const compare = comparePrimitives; export const compareTo = comparePrimitives; export function duration(x) { return Math.abs(x); } export function toString(ts, format = "c", _provider) { if (["c", "g", "G"].indexOf(format) === -1) { throw new Exception("Custom formats are not supported"); } const d = Math.abs(days(ts)); const h = Math.abs(hours(ts)); const m = Math.abs(minutes(ts)); const s = Math.abs(seconds(ts)); const ms = Math.abs(milliseconds(ts)); const sign = ts < 0 ? "-" : ""; return `${sign}${d === 0 && (format === "c" || format === "g") ? "" : format === "c" ? d + "." : d + ":"}${format === "g" ? h : padWithZeros(h, 2)}:${padWithZeros(m, 2)}:${padWithZeros(s, 2)}${ms === 0 && (format === "c" || format === "g") ? "" : format === "g" ? "." + padWithZeros(ms, 3) : "." + padLeftAndRightWithZeros(ms, 3, 7)}`; } export function parse(str) { const firstDot = str.search("\\."); const firstColon = str.search("\\:"); if (firstDot === -1 && firstColon === -1) { // There is only a day ex: 4 const d = parseInt(str, 0); if (isNaN(d)) { throw new Exception(`String '${str}' was not recognized as a valid TimeSpan.`); } else { return create(d, 0, 0, 0, 0); } } if (firstColon > 0) { // process time part // WIP: (-?)(((\d+)\.)?([0-9]|0[0-9]|1[0-9]|2[0-3]):(\d+)(:\d+(\.\d{1,7})?)?|\d+(?:(?!\.))) const r = /^(-?)((\d+)\.)?(?:0*)([0-9]|0[0-9]|1[0-9]|2[0-3]):(?:0*)([0-5][0-9]|[0-9])(:(?:0*)([0-5][0-9]|[0-9]))?\.?(\d+)?$/.exec(str); if (r != null && r[4] != null && r[5] != null) { let d = 0; let ms = 0; let s = 0; const sign = r[1] != null && r[1] === "-" ? -1 : 1; const h = +r[4]; const m = +r[5]; if (r[3] != null) { d = +r[3]; } if (r[7] != null) { s = +r[7]; } if (r[8] != null) { // Depending on the number of decimals passed, we need to adapt the numbers switch (r[8].length) { case 1: ms = +r[8] * 100; break; case 2: ms = +r[8] * 10; break; case 3: ms = +r[8]; break; case 4: ms = +r[8] / 10; break; case 5: ms = +r[8] / 100; break; case 6: ms = +r[8] / 1000; break; case 7: ms = +r[8] / 10000; break; default: throw new Exception(`String '${str}' was not recognized as a valid TimeSpan.`); } } return sign * create(d, h, m, s, ms); } } throw new Exception(`String '${str}' was not recognized as a valid TimeSpan.`); } export function tryParse(v, defValue) { try { defValue.contents = parse(v); return true; } catch { return false; } }