Operators are used to performing specific mathematical and logical computations on operands. In other words, we can say that an operator operates the operands. In JavaScript, operators are used to comparing values, perform arithmetic operations, etc. 

The Complete List of JavaScript Operators are listed below:

• JavaScript Arithmetic Operators
• JavaScript Comparison Operators
• JavaScript Logical Operators 
• JavaScript Assignment Operators
• JavaScript Ternary Operators
• JavaScript typeof Operator
• JavaScript Bitwise Operator
• JavaScript conditional Operator
• JavaScript instanceof Operator
• JavaScript Delete Operator
• JavaScript in Operator
• JavaScript Spread Operator
• JavaScript comma Operator
• JavaScript Grouping operator
• JavaScript +_  operator
• Javascript Short circuiting operators
• JavaScript Nullish Coalescing Operator
• JavaScript >>> Operator
• JavaScript Pipeline Operator
• Operator precedence in JavaScript
• JavaScript  Strict equality operator
• JavaScript Optional chaining
• Arrow operator in ES6 of JavaScript