jslong

The jslong - is a pure JavaScript implementation of Long class for representing a 64-bit two's-complement integer value.

$ npm install -save @modern-dev/jslong

:clipboard: Usage

import { Long } from '@modern-dev/jslong';

const val = Long.getMinValue().subtract(Long.fromInt(1024)).toString(16);
console.log(val); // '7ffffffffffffc00'

:mortar_board: API Reference

Constructor

/**
 * @param {number} low  The low (signed) 32 bits of the long.
 * @param {number} high  The high (signed) 32 bits of the long.
 */
constructor(low: number, high: number)

Methods

| Method signature | Description | | --- | --- | | toInt(): number | The value, assuming it is a 32-bit integer. | | toNumber(): number | The closest floating-point representation to this value. | | isSafeInteger(): boolean | if can be exactly represented using number (i.e. abs(value) < 2^53). | | toString(radix?: number): string | The textual representation of this value. | | getHighBits(): number | The high 32-bits as a signed value. | | getLowBits(): number | The low 32-bits as a signed value. | | getLowBitsUnsigned(): number | The low 32-bits as an unsigned value. | | getNumBitsAbs(): number | Returns the number of bits needed to represent the absolute value of this Long. | | isZero(): boolean | Whether this value is zero. | | isNegative(): boolean | Whether this value is negative. | | isOdd(): boolean | Whether this value is odd. | | equals(other: Long): boolean | Whether this Long equals the other. | | notEquals(other: Long): boolean | Whether this Long does not equal the other. | | lessThan(other: Long): boolean | Whether this Long is less than the other. | | lessThanOrEqual(other: Long): boolean | Whether this Long is less than or equal to the other. | | greaterThan(other: Long): boolean | Whether this Long is greater than the other. | | greaterThanOrEqual(other: Long): boolean | Whether this Long is greater than or equal to the other. | | compare(other: Long): number | 0 if they are the same, 1 if the this is greater, and -1 if the given one is greater. | | negate(): Long | The negation of this value. | | add(other: Long): Long | The sum of this and the given Long. | | subtract(other: Long): Long | The difference of this and the given Long. | | multiply(other: Long): Long | The product of this and the other. | | div(other: Long): Long | This Long divided by the given one. | | modulo(other: Long): Long | This Long modulo the given one. | | not(): Long | The bitwise-NOT of this value. | | and(other: Long): Long | The bitwise-AND of this and the other. | | or(other: Long): Long | The bitwise-OR of this and the other. | | xor(other: Long): Long | The bitwise-XOR of this and the other. | | shiftLeft(numBits: number): Long | This shifted to the left by the given amount. | | shiftRight(numBits: number): Long | This shifted to the right by the given amount. | | shiftRightUnsigned(numBits: number): Long | This shifted to the right by the given amount, with zeros placed into the new leading bits. | | static fromInt(value: number): Long | The corresponding Long value. | | static fromNumber(value: number): Long | The corresponding Long value. | | static fromBits(lowBits: number, highBits: number): Long | The corresponding Long value. | | static fromString(str: string, opt_radix?: number): Long | The corresponding Long value. | | static isStringInRange(str: string, opt_radix: number): boolean | Whether the string is within the range of a Long. |

:green_book: License

Licensed under the Apache License 2.0.

Based on the Long implementation for Google's Closure Library.

Copyright 2009 The Closure Library Authors. All Rights Reserved. Copyright (c) 2020 Bohdan Shtepan

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