/** @format */
// ---------MAP-----------
interface Map<K, V> {
    findKeyByValue(value: any): any
    keysArr(): any[]
    valuesArr(): any[]
}
Map.prototype.findKeyByValue = function (value: any) {
    const keys = this.keysArr()
    const values = this.valuesArr()
    let returnKeys = []
    for (let i = 0; i < values.length; i++) {
        if (values[i] == value) {
            returnKeys.push(keys[i])
        }
    }
    return returnKeys
}
Map.prototype.keysArr = function () {
    return Array.from(this.keys())
}
Map.prototype.valuesArr = function () {
    return Array.from(this.values())
}