Java Script Introduction

JavaScript Introduction Aaron Conran Text: JavaScript The Definitive Guide By David Flannagan

Case Sensitive ,[object Object],[object Object],[object Object],[object Object]

(Optional) Semicolons ,[object Object],[object Object],[object Object]

Comments ,[object Object],[object Object],[object Object]

Comments (JSDoc) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

JavaScript Reserved Words ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

JavaScript DataTypes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Special Numeric Values (Table 3-1) p25 Special value to represent negative infinity Number.NEGATIVE_INFINITY Special value to represent infinity Number.POSTIVE_INFINITY Special not a number value Number.NaN Smallest (closest to zero) representable number Number.MIN_VALUE Largest representable number Number.MAX_VALUE Special not-a-number value NaN Special value to represent infinity Infinity Meaning Constant

Strings ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Escape Sequences ,[object Object],[object Object],[object Object]

Escape Sequences (Table 3-2) p27 The Latin-1 character specified by the octal digits XXX, between 1 and 377. Not support by ECMAScript v3; do not use this escpae sequence. XX The Unicode character specified by the four hexadecimal digits XXXX XXXX The Latin-1 character specified by the two hexadecimal digits XX XX Backslash (005C) Apostrophe or single quote (u027) Double quote (u022) Carriage return (u00D) Form feed (000C) Vertical tab (000B) Newline (000A) Horizontal tab (0009) Backspace (0008) The NUL character (0000) Character represented Sequence

Adding Strings ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Converting Strings To Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Booleans ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Equals vs Strictly Equals ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Object Literal ,[object Object],[object Object],[object Object]

Functions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Functions as Properties ,[object Object],[object Object],[object Object],[object Object]

Arrays ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Arrays (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

null vs undefined ,[object Object],[object Object],[object Object],[object Object]

null vs undefined ,[object Object],[object Object],[object Object]

Java Script Introduction

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Java Script Introduction