Javascript

The instanceof operator tests to see if the prototype property of a constructor appears anywhere in the prototype chain of an object. The return value is a boolean value.

A typeOf keyword returns a string indicating the Data Type of the identifier.

JavaScript operators perform some operation on one or more operands and produce a result. The operand is the data or value on which an operation is to be done. For Example, in the expression 10+2, + is an operator, while 10 & 2 are the operands.

The operator precedence along with their associativity determines how JavaScript evaluates an expression when there are multiple JavaScript Operators present in the expression. Each JavaScript operators have certain precedence. The JavaScript evaluates the operators with higher precedence first. If a group of operators has the same Precedence, then it evaluates them either left to right or right to left, depending on the operator’s associativity. The table end of the article. has a list of all operators, with their precedence along with associativity.

The comma operator separates each of its operands and evaluates all of them from left to right. It returns the value of the last operand.