Web3 BigNumber

Web3 BigNumber is an extensive library for managing large number for Javascript and Node.js. Useful for web3 development.

Installation

You can install the package using NPM

Using NPM

npm install web3-bignumber

Using Yarn

yarn add web3-bignumber

Getting Started

• ✍️ If you have questions submit an issue

Prerequisites

• ⚙️ NodeJS (LTS/Fermium)
• 🧰 Yarn/Lerna

Usage

Import

const { Web3BigNumber } = require("web3-bignumber");

OR

import { Web3BigNumber } from "web3-bignumber";

Web3BigNumber(number: bigint | string | number)

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Basic Usage

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Simple Formatting

Web3BigNumber(1e+27).value();
// Output: 1000000000000000000000000000

From small to big

Web3BigNumber(1000).toBig(18);
// Output: 1000000000000000000000

From big to small

Web3BigNumber("12300000000000000").toSmall(18);
// Output: 0.0123

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Arithmatic Operations

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Addition

Web3BigNumber("100").add(50);
// Output: 150

Subtract

Web3BigNumber("100").subtract(50);
// Output: 50

Multiply

Web3BigNumber("100").multiply(5);
// Output: 500

Division

Web3BigNumber("50").divide(5);
// Output: 10

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Manipulate

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To Big Integer

Web3BigNumber("1234500000000000").toBigInt();
// Output: 1234500000000000n

To Integer

Web3BigNumber("123").toInteger();
// Output: 123

Comma Seperated

Web3BigNumber("1234500000000").toCommaSeparated();
// Output: 1,234,500,000,000

Compact Number

Web3BigNumber("1000000").toCompactNumber();
// Output: 1M

Percentage

Web3BigNumber("0.123").toPercent();
// Output: 12.3%

Fixed Decimal Places

Web3BigNumber("12.34567").trimDecimalPlaces(2);
// Output: 12.35

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Conditional Check

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Check Zero

Web3BigNumber(0).isZero();
// Output: true

Web3BigNumber(1).isZero();
// Output: false

Check Negative

Web3BigNumber(-123).isNegative();
// Output: true

Web3BigNumber(123).isNegative();
// Output: false

Equal

Web3BigNumber(123).equals("123");
// Output: true

Web3BigNumber(123).equals(456);
// Output: false

Greater Than

Web3BigNumber(123).gt("5");
// Output: true

Web3BigNumber(123).gt(456);
// Output: false

Greater Than or Equal

Web3BigNumber(123).gte("123");
// Output: true

Web3BigNumber(123).gte(456);
// Output: false

Less Than

Web3BigNumber(123).lt("1234");
// Output: true

Web3BigNumber(123).lt(5);
// Output: false

Less Than or Equal

Web3BigNumber(123).lte("123");
// Output: true

Web3BigNumber(123).lte(5);
// Output: false

Check Maximum

Web3BigNumber(123).max("1234");
// Output: 1234

Check Minimum

Web3BigNumber(123).min("1234");
// Output: 123

Prototype Functions

// Example
Web3BigNumber(1000).subtract("1000").isZero();
// Output: true

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All Prototype Functions

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String | Number | BigInt

• toBigInt()
• toCommaSeparated()
• toCompactNumber()
• toPercent()
• toInteger()
• isZero()
• isNegative()
• equals(num2: number | string | bigint)
• gt(num2: number | string | bigint)
• gte(num2: number | string | bigint)
• lt(num2: number | string | bigint)
• lte(num2: number | string | bigint)
• add(num2: number | string | bigint)
• subtract(num2: number | string | bigint)
• multiply(num2: number | string | bigint)
• divide(num2: number | string | bigint)
• max(num2: number | string | bigint)
• min(num2: number | string | bigint)