You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
924 B
24 lines
924 B
// false -> Array#indexOf
|
|
// true -> Array#includes
|
|
var toIObject = require('./_to-iobject');
|
|
var toLength = require('./_to-length');
|
|
var toAbsoluteIndex = require('./_to-absolute-index');
|
|
module.exports = function (IS_INCLUDES) {
|
|
return function ($this, el, fromIndex) {
|
|
var O = toIObject($this);
|
|
var length = toLength(O.length);
|
|
var index = toAbsoluteIndex(fromIndex, length);
|
|
var value;
|
|
// Array#includes uses SameValueZero equality algorithm
|
|
// eslint-disable-next-line no-self-compare
|
|
if (IS_INCLUDES && el != el) while (length > index) {
|
|
value = O[index++];
|
|
// eslint-disable-next-line no-self-compare
|
|
if (value != value) return true;
|
|
// Array#indexOf ignores holes, Array#includes - not
|
|
} else for (;length > index; index++) if (IS_INCLUDES || index in O) {
|
|
if (O[index] === el) return IS_INCLUDES || index || 0;
|
|
} return !IS_INCLUDES && -1;
|
|
};
|
|
};
|