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/**

* Returns true if the element is in the array and false otherwise.

*

* @param {*} value

* @param {number=} opt_fromIndex

* @return {boolean}

* @this {Array}

*/

function includes(value, opt_fromIndex) {

const fromIndex = opt_fromIndex || 0;

// eslint-disable-next-line local/no-invalid-this

const len = this.length;

let i = fromIndex >= 0 ? fromIndex : Math.max(len + fromIndex, 0);

for (; i < len; i++) {

// eslint-disable-next-line local/no-invalid-this

const other = this[i];

// If value has been found OR (value is NaN AND other is NaN)

/*eslint "no-self-compare": 0*/

if (other === value || (value !== value && other !== other)) {

return true;

}

}

return false;

}

/**

* Sets the Array.contains polyfill if it does not exist.

* @param {!Window} win

*/

export function install(win) {

if (!win.Array.prototype.includes) {

win.Object.defineProperty(win.Array.prototype, 'includes', {

enumerable: false,

configurable: true,

writable: true,

value: includes,

});

}

}