Training

The script tag

Functions and events

External JavaScript and References

Using innerHtml and document. write()

Using window.alert() and console.log()

Semicolons

Line length and Line break

Code blocks

Literals and Variables

Operators and Expressions

Keywords and Comments

JavaScript is case sensitive

Single-line and Multi-line comments

Using comments to prevent execution

Much like algebra

Data types

Declaring and Re-declaring JavaScript variables

One statement, many variables

Value = undefined

Arithmetic

Assignment and String operators

Adding strings and number

Operators and operands

Operator precedence

Assignment operators

The concept of data types

Types are dynamic

Strings and Numbers

Booleans and Arrays

Objects and Undefined

The type of operator

Empty values and Nulls

Difference between undefined and null

Primitive and Complex data

Function return

Why functions?

The () operators invokes the function

Functions used as variables values

Local variables

Object definition

Accessing object properties and Object method

HTML events

String length

Special characters

Breaking long code lines

Strings can be objects

Finding and Searching string is string

The Slice(), Substr() and Substring() method

Replacing string content

Converting upper and lowercase

The contact() method

Adding numbers and strings

Numeric strings

NAN - not a number

Infinity

Hexadecimal

Numbers can be objects

The toString() and toExponsional() method

The toFixed() and toPrecision() method

The valueOf() and number() method

Array method

Array sort

Array iteration

Date formats

Date get methods and set methods

Math object

Random

The Boolean() function

Comparisons and Conditions

The JavaScript switch statement

Loop for and while

Break

The typeOf operators

Converting number to string and Boolean to string

Bitwise

Using string search() with a string and replace() with a string

Using test() and exec()

Errors will happen

Input validation

References error and Syntax error

Local and Global JavaScript variables

Declarations are Hoisted

Declaring strict mode

Future proof

this in a method and this in a function

Object method binding

Global and Function scope

Global variable in Html

Hoisting

ECMA script 2015

Debugging

Style guide

Never declare number, strings or Boolean objects

Beware of automatic type conversions

Use parameter defaults