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node_modules/es-abstract/2020/SetFunctionLength.js
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drndsv
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14 апр 2025, 22:53
14 апр 2025, 22:53
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'use strict'; var GetIntrinsic = require('get-intrinsic'); var $TypeError = GetIntrinsic('%TypeError%'); var DefinePropertyOrThrow = require('./DefinePropertyOrThrow'); var HasOwnProperty = require('./HasOwnProperty'); var IsExtensible = require('./IsExtensible'); var IsNonNegativeInteger = require('./IsNonNegativeInteger'); var Type = require('./Type'); // https://262.ecma-international.org/11.0/#sec-setfunctionlength module.exports = function SetFunctionLength(F, length) { if (typeof F !== 'function' || !IsExtensible(F) || HasOwnProperty(F, 'length')) { throw new $TypeError('Assertion failed: `F` must be an extensible function and lack an own `length` property'); } if (Type(length) !== 'Number') { throw new $TypeError('Assertion failed: `length` must be a Number'); } if (!IsNonNegativeInteger(length)) { throw new $TypeError('Assertion failed: `length` must be an integer >= 0'); } return DefinePropertyOrThrow(F, 'length', { '[[Configurable]]': true, '[[Enumerable]]': false, '[[Value]]': length, '[[Writable]]': false }); };