Sha256: f56b3c1bc4fe4c2bdd45105466f95888f3aaf35db56800a22fb8c8e56f6af6d9
Contents?: true
Size: 1.36 KB
Versions: 135
Compression:
Stored size: 1.36 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/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');
var defaultElementTypes = ['Undefined', 'Null', 'Boolean', 'String', 'Symbol', 'Number', 'Object'];
// https://262.ecma-international.org/6.0/#sec-createlistfromarraylike
module.exports = function CreateListFromArrayLike(obj) {
var elementTypes = arguments.length > 1
? arguments[1]
: defaultElementTypes;
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;
};
Version data entries
135 entries across 27 versions & 2 rubygems