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/2016/CreateListFromArrayLike.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/2016/CreateListFromArrayLike.js')
-rw-r--r-- | node_modules/es-abstract/2016/CreateListFromArrayLike.js | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2016/CreateListFromArrayLike.js b/node_modules/es-abstract/2016/CreateListFromArrayLike.js new file mode 100644 index 000000000..d6b44b5dc --- /dev/null +++ b/node_modules/es-abstract/2016/CreateListFromArrayLike.js @@ -0,0 +1,43 @@ +'use strict'; + +var GetIntrinsic = require('../GetIntrinsic'); + +var callBound = require('../helpers/callBound'); + +var $TypeError = GetIntrinsic('%TypeError%'); +var $indexOf = callBound('Array.prototype.indexOf', true) || callBound('String.prototype.indexOf'); +var $push = callBound('Array.prototype.push'); + +var Get = require('./Get'); +var IsArray = require('./IsArray'); +var ToLength = require('./ToLength'); +var ToString = require('./ToString'); +var Type = require('./Type'); + +// https://ecma-international.org/ecma-262/6.0/#sec-createlistfromarraylike +module.exports = function CreateListFromArrayLike(obj) { + var elementTypes = arguments.length > 1 + ? arguments[1] + : ['Undefined', 'Null', 'Boolean', 'String', 'Symbol', 'Number', 'Object']; + + if (Type(obj) !== 'Object') { + throw new $TypeError('Assertion failed: `obj` must be an Object'); + } + if (!IsArray(elementTypes)) { + throw new $TypeError('Assertion failed: `elementTypes`, if provided, must be an array'); + } + var len = ToLength(Get(obj, 'length')); + var list = []; + var index = 0; + while (index < len) { + var indexName = ToString(index); + var next = Get(obj, indexName); + var nextType = Type(next); + if ($indexOf(elementTypes, nextType) < 0) { + throw new $TypeError('item type ' + nextType + ' is not a valid elementType'); + } + $push(list, next); + index += 1; + } + return list; +}; |