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The instanceof operator is used to determine whether or not a type is of a particular constructor function. For example, since an interface can be implemented by several classes, how do we determine which class initializes a particular variable if it’s declared which an interface type? We can achieve that using the instanceof operator. Let’s look at an example: interface Person { id(); } class Chef implements Person { id() { console.log("I am a chef") } cook(){ console.log("I l...