What is typeof in JS?

typeof is a JavaScript keyword that will return the type of a variable when you call it . You can use this to validate function parameters or check if variables are defined. There are other uses as well. The typeof operator is useful because it is an easy way to check the type of a variable in your code.

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What is Instanceof in Java?

What Is the instanceof Operator? instanceof is a binary operator used to test if an object is of a given type . The result of the operation is either true or false. It’s also known as type comparison operator because it compares the instance with type.6 Ağu 2020

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What does typeof do in Java?

The JavaScript typeof operator is used to return a string that represents the type of JavaScript for a given value . It returns the data type of the operand in the form of a string. The operand can be a literal or a data structure like a function, an object, or a variable.

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