Sha256: 304567035093bac96638876156b00bd859d497526ea9033e69f7990012924119
Contents?: true
Size: 1.15 KB
Versions: 26
Compression:
Stored size: 1.15 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $concat = GetIntrinsic('%Array.prototype.concat%');
var callBind = require('call-bind');
var callBound = require('call-bind/callBound');
var $slice = callBound('Array.prototype.slice');
var hasSymbols = require('has-symbols/shams')();
var isConcatSpreadable = hasSymbols && Symbol.isConcatSpreadable;
var empty = [];
var $concatApply = isConcatSpreadable ? callBind.apply($concat, empty) : null;
var $concatCall = isConcatSpreadable ? null : callBind($concat, empty);
var isArray = isConcatSpreadable ? require('isarray') : null;
module.exports = isConcatSpreadable
// eslint-disable-next-line no-unused-vars
? function safeArrayConcat(item) {
for (var i = 0; i < arguments.length; i += 1) {
var arg = arguments[i];
if (arg && typeof arg === 'object' && typeof arg[isConcatSpreadable] === 'boolean') {
if (!empty[isConcatSpreadable]) {
empty[isConcatSpreadable] = true;
}
var arr = isArray(arg) ? $slice(arg) : [arg];
arr[isConcatSpreadable] = true; // shadow the property. TODO: use [[Define]]
arguments[i] = arr;
}
}
return $concatApply(arguments);
}
: $concatCall;
Version data entries
26 entries across 26 versions & 1 rubygems