OwlCyberSecurity - MANAGER

Edit File: IsValidIntegerIndex.js

'use strict'; var GetIntrinsic = require('get-intrinsic'); var $TypeError = GetIntrinsic('%TypeError%'); var IsDetachedBuffer = require('./IsDetachedBuffer'); var IsIntegralNumber = require('./IsIntegralNumber'); var isNegativeZero = require('../helpers/isNegativeZero'); var typedArrayBuffer = require('typed-array-buffer'); // https://262.ecma-international.org/12.0/#sec-isvalidintegerindex module.exports = function IsValidIntegerIndex(O, index) { // Assert: O is an Integer-Indexed exotic object. var buffer = typedArrayBuffer(O); // step 1 if (typeof index !== 'number') { throw new $TypeError('Assertion failed: Type(index) is not Number'); } if (IsDetachedBuffer(buffer)) { return false; } // step 2 if (!IsIntegralNumber(index)) { return false; } // step 3 if (isNegativeZero(index)) { return false; } // step 4 if (index < 0 || index >= O.length) { return false; } // step 5 return true; // step 6 };