bdde081050
Added test to ensure that release notes are parsed properly Updated to latest dependencies to fix security vulnerability Updated GH Actions Workflow to run test before updating tag Updated README.md to reflect proper whatsnew documentation.
67 lines
1.6 KiB
JavaScript
67 lines
1.6 KiB
JavaScript
'use strict';
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var GetIntrinsic = require('../GetIntrinsic');
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var $Number = GetIntrinsic('%Number%');
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var $TypeError = GetIntrinsic('%TypeError%');
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var $isNaN = require('../helpers/isNaN');
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var $isFinite = require('../helpers/isFinite');
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var isPrefixOf = require('../helpers/isPrefixOf');
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var ToNumber = require('./ToNumber');
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var ToPrimitive = require('./ToPrimitive');
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var Type = require('./Type');
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// https://www.ecma-international.org/ecma-262/5.1/#sec-11.8.5
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// eslint-disable-next-line max-statements
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module.exports = function AbstractRelationalComparison(x, y, LeftFirst) {
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if (Type(LeftFirst) !== 'Boolean') {
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throw new $TypeError('Assertion failed: LeftFirst argument must be a Boolean');
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}
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var px;
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var py;
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if (LeftFirst) {
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px = ToPrimitive(x, $Number);
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py = ToPrimitive(y, $Number);
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} else {
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py = ToPrimitive(y, $Number);
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px = ToPrimitive(x, $Number);
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}
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var bothStrings = Type(px) === 'String' && Type(py) === 'String';
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if (!bothStrings) {
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var nx = ToNumber(px);
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var ny = ToNumber(py);
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if ($isNaN(nx) || $isNaN(ny)) {
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return undefined;
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}
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if ($isFinite(nx) && $isFinite(ny) && nx === ny) {
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return false;
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}
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if (nx === 0 && ny === 0) {
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return false;
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}
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if (nx === Infinity) {
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return false;
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}
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if (ny === Infinity) {
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return true;
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}
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if (ny === -Infinity) {
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return false;
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}
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if (nx === -Infinity) {
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return true;
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}
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return nx < ny; // by now, these are both nonzero, finite, and not equal
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}
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if (isPrefixOf(py, px)) {
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return false;
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}
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if (isPrefixOf(px, py)) {
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return true;
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}
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return px < py; // both strings, neither a prefix of the other. shortcut for steps c-f
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};
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