Constnium/node_modules/array-includes/implementation.js
2022-06-23 02:27:43 +02:00

36 lines
1.3 KiB
JavaScript

'use strict';
var ToIntegerOrInfinity = require('es-abstract/2021/ToIntegerOrInfinity');
var ToLength = require('es-abstract/2021/ToLength');
var ToObject = require('es-abstract/2021/ToObject');
var SameValueZero = require('es-abstract/2021/SameValueZero');
var $isNaN = require('es-abstract/helpers/isNaN');
var $isFinite = require('es-abstract/helpers/isFinite');
var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/callBound');
var isString = require('is-string');
var $charAt = callBound('String.prototype.charAt');
var $indexOf = GetIntrinsic('%Array.prototype.indexOf%'); // TODO: use callBind.apply without breaking IE 8
var $max = GetIntrinsic('%Math.max%');
module.exports = function includes(searchElement) {
var fromIndex = arguments.length > 1 ? ToIntegerOrInfinity(arguments[1]) : 0;
if ($indexOf && !$isNaN(searchElement) && $isFinite(fromIndex) && typeof searchElement !== 'undefined') {
return $indexOf.apply(this, arguments) > -1;
}
var O = ToObject(this);
var length = ToLength(O.length);
if (length === 0) {
return false;
}
var k = fromIndex >= 0 ? fromIndex : $max(0, length + fromIndex);
while (k < length) {
if (SameValueZero(searchElement, isString(O) ? $charAt(O, k) : O[k])) {
return true;
}
k += 1;
}
return false;
};