Jon Duckett has been designing and building web sites for over a decade, working with global brands, and has authored and co-authored over a dozen books on web design, programming, usability and accessibility. He has curated conferences about web programming and has been a web strategy consultant, often coding front ends for projects and designing architectures for back end programming.

• Introduction 1Chapter 1: The ABC of Programming 11Chapter 2: Basic JavaScript Instructions 53Chapter 3: Functions, Methods & Objects 85Chapter 4: Decisions & Loops 145Chapter 5: Document Object Model 183Chapter 6: Events 243Chapter 7: jQuery 293Chapter 8: Ajax & JSON 367Chapter 9: APIs 409Chapter 10: Error Handling & Debugging 449Chapter 11: Content Panels 487Chapter 12: Filtering, Searching & Sorting 527Chapter 13: Form Enhancement & Validation 567Index 623

"Forget dry references and cheesy examples. This beautifully designed visual guide takes you from the basics to sophisticated JavaScript techniques for making websites interactive and engaging in a way that is, in itself, interactive and engaging." (ZDNet, September 2014)"... inside it's beautifully designed, clearly laid out, and adds plenty of visual examples alongside the instructive text...." (,em>Web User, August 2014)

Jon Duckett has been designing and building web sites for over a decade, working with global brands, and has authored and co-authored over a dozen books on web design, programming, usability and accessibility. He has curated conferences about web programming and has been a web strategy consultant, often coding front ends for projects and designing architectures for back end programming.

• Introduction 1Chapter 1: The ABC of Programming 11Chapter 2: Basic JavaScript Instructions 53Chapter 3: Functions, Methods & Objects 85Chapter 4: Decisions & Loops 145Chapter 5: Document Object Model 183Chapter 6: Events 243Chapter 7: jQuery 293Chapter 8: Ajax & JSON 367Chapter 9: APIs 409Chapter 10: Error Handling & Debugging 449Chapter 11: Content Panels 487Chapter 12: Filtering, Searching & Sorting 527Chapter 13: Form Enhancement & Validation 567Index 623

"Forget dry references and cheesy examples. This beautifully designed visual guide takes you from the basics to sophisticated JavaScript techniques for making websites interactive and engaging in a way that is, in itself, interactive and engaging." (ZDNet, September 2014)"... inside it's beautifully designed, clearly laid out, and adds plenty of visual examples alongside the instructive text...." (,em>Web User, August 2014)

Jon Duckett has been designing and building web sites for over a decade, working with global brands, and has authored and co-authored over a dozen books on web design, programming, usability and accessibility. He has curated conferences about web programming and has been a web strategy consultant, often coding front ends for projects and designing architectures for back end programming.

• Introduction 1Chapter 1: The ABC of Programming 11Chapter 2: Basic JavaScript Instructions 53Chapter 3: Functions, Methods & Objects 85Chapter 4: Decisions & Loops 145Chapter 5: Document Object Model 183Chapter 6: Events 243Chapter 7: jQuery 293Chapter 8: Ajax & JSON 367Chapter 9: APIs 409Chapter 10: Error Handling & Debugging 449Chapter 11: Content Panels 487Chapter 12: Filtering, Searching & Sorting 527Chapter 13: Form Enhancement & Validation 567Index 623

"Forget dry references and cheesy examples. This beautifully designed visual guide takes you from the basics to sophisticated JavaScript techniques for making websites interactive and engaging in a way that is, in itself, interactive and engaging." (ZDNet, September 2014)"... inside it's beautifully designed, clearly laid out, and adds plenty of visual examples alongside the instructive text...." (,em>Web User, August 2014)