Operators are the symbols between values that allow different operations like addition, subtraction, multiplication, and more.
JavaScript has dozens of operators, so let’s focus on the ones you’re likely to see most often.
Arithmetic
The + operator adds two numbers.
// EXAMPLE
1 + 2;
// OUTPUT
3The – operator subtracts one number from another.
// EXAMPLE
3 * 12;
// OUTPUT
36Grouping
() operator groups other values and operations. Code located between parentheses evaluates first as JavaScript solves each operation moving from left to right.
Adding the grouping operator to the previous example causes 1 + 100 to evaluate first.
// EXAMPLE
(1 + 100) * 5;
// OUTPUT
505Concatenation
The + operator can also concatenate strings, which is another way of saying it can add them together.
// EXAMPLE
"news" + "paper";
// OUTPUT
"newspaper"Assignment
The = operator assigns values. It’s used for setting the value of variables.
// EXAMPLE
var dinner = "sushi";