diff options
author | isaacs <i@izs.me> | 2020-07-23 20:58:04 +0300 |
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committer | isaacs <i@izs.me> | 2020-07-29 21:53:42 +0300 |
commit | ad5e07d8bd86d1dbe2b03dc142f8c8d6f4828ffe (patch) | |
tree | 97b66f97d77f35774f10a5e3e9957b1897d150bb /node_modules/es-abstract/2017/AbstractEqualityComparison.js | |
parent | a16994cfdd2f255016f3d8ee60d03473d80eabd8 (diff) |
Full dependency reboot
Reinstall everything from a clean node_modules and package-lock.json
state.
Re-generate list of bundleDependencies and node_modules/.gitignore with
a script that does the right thing based on actual dependency state.
Diffstat (limited to 'node_modules/es-abstract/2017/AbstractEqualityComparison.js')
-rw-r--r-- | node_modules/es-abstract/2017/AbstractEqualityComparison.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2017/AbstractEqualityComparison.js b/node_modules/es-abstract/2017/AbstractEqualityComparison.js new file mode 100644 index 000000000..40b390986 --- /dev/null +++ b/node_modules/es-abstract/2017/AbstractEqualityComparison.js @@ -0,0 +1,37 @@ +'use strict'; + +var ToNumber = require('./ToNumber'); +var ToPrimitive = require('./ToPrimitive'); +var Type = require('./Type'); + +// https://www.ecma-international.org/ecma-262/6.0/#sec-abstract-equality-comparison + +module.exports = function AbstractEqualityComparison(x, y) { + var xType = Type(x); + var yType = Type(y); + if (xType === yType) { + return x === y; // ES6+ specified this shortcut anyways. + } + if (x == null && y == null) { + return true; + } + if (xType === 'Number' && yType === 'String') { + return AbstractEqualityComparison(x, ToNumber(y)); + } + if (xType === 'String' && yType === 'Number') { + return AbstractEqualityComparison(ToNumber(x), y); + } + if (xType === 'Boolean') { + return AbstractEqualityComparison(ToNumber(x), y); + } + if (yType === 'Boolean') { + return AbstractEqualityComparison(x, ToNumber(y)); + } + if ((xType === 'String' || xType === 'Number' || xType === 'Symbol') && yType === 'Object') { + return AbstractEqualityComparison(x, ToPrimitive(y)); + } + if (xType === 'Object' && (yType === 'String' || yType === 'Number' || yType === 'Symbol')) { + return AbstractEqualityComparison(ToPrimitive(x), y); + } + return false; +}; |