aaac7fed
 liuqimichale
add
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'use strict';
var ES = require('es-abstract/es6');
var $isNaN = Number.isNaN || function isNaN(a) {
return a !== a;
};
var $isFinite = Number.isFinite || function isFinite(n) {
return typeof n === 'number' && global.isFinite(n);
};
var indexOf = Array.prototype.indexOf;
module.exports = function includes(searchElement) {
var fromIndex = arguments.length > 1 ? ES.ToInteger(arguments[1]) : 0;
if (indexOf && !$isNaN(searchElement) && $isFinite(fromIndex) && typeof searchElement !== 'undefined') {
return indexOf.apply(this, arguments) > -1;
}
var O = ES.ToObject(this);
var length = ES.ToLength(O.length);
if (length === 0) {
return false;
}
var k = fromIndex >= 0 ? fromIndex : Math.max(0, length + fromIndex);
while (k < length) {
if (ES.SameValueZero(searchElement, O[k])) {
return true;
}
k += 1;
}
return false;
};
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