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What are operators in JavaScript?

Let us take a simple expression ‘4 + 5 is equal to 9’. Here 4 and 5 are called operands and ‘+’ is called the operator.

JavaScript supports the following types of operators.

  • Arithmetic Operators
  • Comparison Operators
  • Logical (or Relational) Operators
  • Assignment Operators
  • Conditional (or ternary) Operators

Example

Here’s an example stating an example of operators −

Live Demo

<html>
   <body>
      <script>
         var a = 33;
         var b = 10;
         var c = "Test";
         var linebreak = "<br />";
         document.write("a + b = ");
         result = a + b;
         document.write(result);
         document.write(linebreak);
         document.write("a - b = ");
         result = a - b;
         document.write(result);
         document.write(linebreak);
         document.write("a / b = ");
         result = a / b;
         document.write(result);
         document.write(linebreak);
         document.write("a % b = ");
         result = a % b;
         document.write(result);
         document.write(linebreak);
         document.write("a + b + c = ");
         result = a + b + c;
         document.write(result);
         document.write(linebreak);
         a = ++a;
         document.write("++a = ");
         result = ++a;
         document.write(result);
         document.write(linebreak);
         b = --b;
         document.write("--b = ");
         result = --b;
         document.write(result);
         document.write(linebreak);
      </script>
   </body>
</html>
Updated on 15-Jun-2020 05:38:57

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