TanTan
e311ca3275
Build NapCat Artifacts / Windows Loader Test (push) Canceled after 0s
Build NapCat Artifacts / Type Check & Test (push) Canceled after 0s
Build NapCat Artifacts / Build NapCat.Framework (push) Canceled after 0s
Build NapCat Artifacts / Build NapCat.Shell (push) Canceled after 0s
33 lines
846 B
Plaintext
33 lines
846 B
Plaintext
'use strict';
|
|
|
|
var $TypeError = require('es-errors/type');
|
|
|
|
var IsInteger = require('./IsInteger');
|
|
|
|
var isNegativeZero = require('math-intrinsics/isNegativeZero');
|
|
|
|
var isTypedArray = require('is-typed-array');
|
|
var typedArrayBuffer = require('typed-array-buffer');
|
|
|
|
// https://262.ecma-international.org/11.0/#sec-isvalidintegerindex
|
|
|
|
module.exports = function IsValidIntegerIndex(O, index) {
|
|
if (!isTypedArray) {
|
|
throw new $TypeError('Assertion failed: `O` must be a Typed Array');
|
|
}
|
|
|
|
typedArrayBuffer(O); // step 1
|
|
|
|
if (typeof index !== 'number') {
|
|
throw new $TypeError('Assertion failed: Type(index) is not Number'); // step 2
|
|
}
|
|
|
|
if (!IsInteger(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
|
|
};
|