LeetCode/js/check-if-object-instance-of-class.js

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/**
* @param {any} obj
* @param {any} classFunction
* @return {boolean}
*/
var checkIfInstanceOf = function(obj, classFunction) {
if (obj === null || obj === undefined || typeof classFunction !== "function") {
return false;
}
return Object(obj) instanceof classFunction;
};
/**
* checkIfInstanceOf(new Date(), Date); // true
*/