JSBI: High Precision BigInt Library for JavaScript

JSBI (Javascript BigInt) is a library that provides a comprehensive, efficient, and cross-platform solution for working with big integers. JSBI allows developers to perform precise arithmetic calculations without losing precision, which is crucial for applications requiring exact numerical computation.

Getting Started with JSBI

To start using JSBI, first, you need to install it via npm:

npm install jsbi

Then, you can import it into your project:

const JSBI = require('jsbi');

Basic Arithmetic Operations

JSBI provides methods for basic arithmetic operations. Here are some examples:

 // Addition const a = JSBI.BigInt(12345678901234567890); const b = JSBI.BigInt(98765432109876543210); const sum = JSBI.add(a, b); console.log(sum.toString()); // '111111111011111111100'
// Subtraction const difference = JSBI.subtract(b, a); console.log(difference.toString()); // '86419753208641975320'
// Multiplication const product = JSBI.multiply(a, b); console.log(product.toString()); // '121932631246761163723473780722509839760'
// Division const quotient = JSBI.divide(b, a); console.log(quotient.toString()); // '8'
// Remainder const remainder = JSBI.remainder(b, a); console.log(remainder.toString()); // '13580246908641975320' 

Comparison Operations

JSBI also offers comparison methods:

 const x = JSBI.BigInt(1000); const y = JSBI.BigInt(500);
console.log(JSBI.lessThan(x, y)); // false console.log(JSBI.greaterThan(x, y)); // true console.log(JSBI.equal(x, y)); // false 

Advanced Operations and Utilities

JSBI has additional utilities that can be very helpful, such as:

 // Exponentiation const base = JSBI.BigInt(2); const exponent = JSBI.BigInt(10); const power = JSBI.exponentiate(base, exponent); console.log(power.toString()); // '1024'
// Bitwise AND const bitwiseAnd = JSBI.bitwiseAnd(JSBI.BigInt(6), JSBI.BigInt(3)); console.log(bitwiseAnd.toString()); // '2'
// Bitwise OR const bitwiseOr = JSBI.bitwiseOr(JSBI.BigInt(6), JSBI.BigInt(3)); console.log(bitwiseOr.toString()); // '7'
// Bitwise XOR const bitwiseXor = JSBI.bitwiseXor(JSBI.BigInt(6), JSBI.BigInt(3)); console.log(bitwiseXor.toString()); // '5'
// Left Shift const leftShift = JSBI.leftShift(JSBI.BigInt(1), JSBI.BigInt(3)); console.log(leftShift.toString()); // '8'
// Right Shift const rightShift = JSBI.signedRightShift(JSBI.BigInt(8), JSBI.BigInt(3)); console.log(rightShift.toString()); // '1' 

Practical Example: Financial Application

Here is a practical example of how JSBI can be used in a financial application:

 const investment = JSBI.BigInt('100000000'); const annualRate = JSBI.BigInt('5'); // 5% const years = JSBI.BigInt('10');
function calculateFinalAmount(principal, rate, time) {
  const rateFraction = JSBI.divide(rate, JSBI.BigInt('100'));
  const multiplier = JSBI.exponentiate(JSBI.add(JSBI.BigInt(1), rateFraction), time);
  return JSBI.multiply(principal, multiplier);
}
const finalAmount = calculateFinalAmount(investment, annualRate, years); console.log(finalAmount.toString()); // Displays the final amount after 10 years 

Using JSBI for such calculations ensures that you avoid any precision errors that can occur with traditional number operations in JavaScript.

Maximize your project’s performance and precision by integrating JSBI for handling large integers in JavaScript.

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