Expression Statements

Why JAVASCRIPT?

• Why Javascript?

How to write and run Javascript

• Coding with Notepad++
• Coding with VS Code
• Coding in playcode
• Start Coding

How to Add Javascript to Webpage

• How and Where to Add JavaScript to a Web Page

Representing data with values

• Value types
• Variables

Primitive Data Types

• Primitive Data Types
• Number Type
• String Type
• Boolean data type
• Undefined and null
• JavaScript Type Conversions

Operators

• Operators in JavaScript
• Unary Operators
• Binary Operators
• Special Operators
• Combining operators

Expressions

• What is an expression?

Statements

• What are statements?
• Expression Statements
• Compound and Empty Statements
• Declaration Statements
• Conditional statements
• Loop statements
• Jump Statements
• Assignments

Arrays

• What is an array?

The simplest kinds of statements in JavaScript are expressions that have side effects. Assignment statements are one major category of expression statements. For example:

greeting = "Hello " + name;
i *= 3;

The increment and decrement operators, ++ and –, are related to assignment statements. These have the side effect of changing a variable value, just as if an assignment had been performed:

counter++;

Function calls are another major category of expression statements. For example:

alert(greeting);
window.close();