An expression is any valid unit of code that resolves to a value. It can be a combination of variables, literals, operators, and function calls that produce a single value.

Here are some types of expressions in JavaScript [↗]:

**Arithmetic Expressions:**Involving mathematical operations like addition, subtraction, multiplication, division, etc.01: let result = 10 * (5 + 3); // Arithmetic expression**Logical Expressions:**Involving logical operations using logical operators such as`&&`

(AND),`||`

(OR),`!`

(NOT), etc.01: let isTrue = (true && false); // Logical expression**String Concatenation:**Combining strings using the`+`

operator.01: let fullName = "John" + " " + "Doe"; // String concatenation expression**Function Calls:**Invoking functions that return values.01: let randomNumber = Math.random(); // Function call expression**Assignment Expressions:**Assigning values to variables using the`=`

operator.01: let x = 10; // Assignment expression**Ternary Expressions (Conditional Operator):**Using the conditional operator`? :`

for conditional expressions.01: let age = 20; 02: let message = (age >= 18) ? "Adult": "Minor"; // Conditional expression

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