Binary Operators

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?

Assignment operator

The assignment operator assigns the value of the operand on the right to the operand on the left:

a = 5;

After this expression runs, the variable a will have a value of 5. You can also chain assignment operators together in order to assign the same value to multiple variables, as in the following example:

a = b = c = 5;

Because the operator’s associativity is right to left, 5 will first be assigned to c, then the value of c will be assigned to b, and then the value if b will be assigned to a. The result of this expression is that a, b, and c all have a value of 5.

Comparison operators:

Comparison operators test for equality or difference between operands and return a true or false value. A complete list of the JavaScript comparison operators is given below:

Arithmetic operators

Arithmetic operators perform mathematical operations on operands and return the result.  A complete list of arithmetic operators is given below:

Logical operators

Logical operators evaluate a logical expression for truthiness or falseness. There are three logical operators: