Code Review Badge

61 Videos
107 Exercises

Code Review Videos

Snippet Review Exercises

Easy image for Golang Snippet #01

Golang Snippet #01

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 53 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #02

Golang Snippet #02

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 249 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #03

Golang Snippet #03

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 189 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #04

Golang Snippet #04

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 241 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #05

Golang Snippet #05

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 207 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #06

Golang Snippet #06

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 168 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #07

Golang Snippet #07

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 182 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #08

Golang Snippet #08

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 170 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #09

Golang Snippet #09

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 164 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #10

Golang Snippet #10

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 168 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #11

Golang Snippet #11

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 160 students
  • Takes Less than an hour on average
Easy image for Golang Snippet #12

Golang Snippet #12

  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 125 students
  • Takes Less than an hour on average
Easy image for PHP Snippet #01

PHP Snippet #01

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 534 students
  • Takes Less than an hour on average
Easy image for PHP Snippet #02

PHP Snippet #02

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 427 students
  • Takes Less than an hour on average
Easy image for PHP Snippet #03

PHP Snippet #03

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 307 students
  • Takes Less than an hour on average
Easy image for PHP Snippet #04

PHP Snippet #04

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 294 students
  • Takes Less than an hour on average
Easy image for PHP Snippet #05

PHP Snippet #05

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 249 students
  • Takes Less than an hour on average
Easy image for PHP Snippet #06

PHP Snippet #06

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 300 students
  • Takes Less than an hour on average
Easy image for PHP Snippet #07

PHP Snippet #07

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 119 students
  • Takes Less than an hour on average
Hard image for PHP Snippet #08

PHP Snippet #08

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 89 students
  • Takes Less than an hour on average
Medium image for PHP Snippet #09

PHP Snippet #09

  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 93 students
  • Takes Less than an hour on average
Easy image for Ruby Snippet #01

Ruby Snippet #01

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 93 students
  • Takes Between 1 and 2 hours on average
Easy image for Ruby Snippet #02

Ruby Snippet #02

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 119 students
  • Takes Less than an hour on average
Easy image for Ruby Snippet #03

Ruby Snippet #03

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 135 students
  • Takes Less than an hour on average
Easy image for Ruby Snippet #04

Ruby Snippet #04

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 123 students
  • Takes Less than an hour on average
Easy image for Ruby Snippet #05

Ruby Snippet #05

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 125 students
  • Takes Less than an hour on average
Easy image for Ruby Snippet #06

Ruby Snippet #06

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 115 students
  • Takes Less than an hour on average
Easy image for Ruby Snippet #07

Ruby Snippet #07

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 100 students
  • Takes Less than an hour on average
Easy image for Ruby Snippet #08

Ruby Snippet #08

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 114 students
  • Takes Less than an hour on average
Easy image for Ruby Snippet #09

Ruby Snippet #09

  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 108 students
  • Takes Less than an hour on average
Easy image for Javascript Snippet #01

Javascript Snippet #01

  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 371 students
  • Takes Less than an hour on average
Easy image for Javascript Snippet #02

Javascript Snippet #02

  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 316 students
  • Takes Less than an hour on average
Easy image for Javascript Snippet #03

Javascript Snippet #03

  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 319 students
  • Takes Less than an hour on average
Easy image for Javascript Snippet #04

Javascript Snippet #04

  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 282 students
  • Takes Less than an hour on average
Easy image for Javascript Snippet #05

Javascript Snippet #05

  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 294 students
  • Takes Less than an hour on average
Easy image for Javascript Snippet #06

Javascript Snippet #06

  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 250 students
  • Takes Less than an hour on average
Easy image for Javascript Snippet #07

Javascript Snippet #07

  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 277 students
  • Takes Less than an hour on average
Easy image for TypeScript Snippet #01

TypeScript Snippet #01

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 178 students
  • Takes Less than an hour on average
Easy image for TypeScript Snippet #02

TypeScript Snippet #02

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 155 students
  • Takes Less than an hour on average
Easy image for TypeScript Snippet #03

TypeScript Snippet #03

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 160 students
  • Takes Less than an hour on average
Easy image for TypeScript Snippet #04

TypeScript Snippet #04

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 80 students
  • Takes Less than an hour on average
Easy image for TypeScript Snippet #05

TypeScript Snippet #05

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 115 students
  • Takes Less than an hour on average
Easy image for TypeScript Snippet #06

TypeScript Snippet #06

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 63 students
  • Takes Between 1 and 2 hours on average
Easy image for TypeScript Snippet #07

TypeScript Snippet #07

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 62 students
  • Takes Less than an hour on average
Easy image for TypeScript Snippet #08

TypeScript Snippet #08

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 76 students
  • Takes Less than an hour on average
Easy image for TypeScript Snippet #09

TypeScript Snippet #09

  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 102 students
  • Takes Less than an hour on average
Easy image for Java Snippet #01

Java Snippet #01

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 264 students
  • Takes Less than an hour on average
Easy image for Java Snippet #02

Java Snippet #02

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 239 students
  • Takes Less than an hour on average
Easy image for Java Snippet #03

Java Snippet #03

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 217 students
  • Takes Less than an hour on average
Easy image for Java Snippet #04

Java Snippet #04

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 129 students
  • Takes Less than an hour on average
Easy image for Java Snippet #05

Java Snippet #05

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 114 students
  • Takes Less than an hour on average
Easy image for Java Snippet #06

Java Snippet #06

  • This challenge covers the review of a snippet of code written in Java
  • Completed by 30 students
  • Takes Between 2 and 4 hours on average
Coming soon
Easy image for Java Snippet #07

Java Snippet #07

  • This challenge covers the review of a snippet of code written in Java
  • Takes -- on average
Coming soon
Easy image for Java Snippet #08

Java Snippet #08

  • This challenge covers the review of a snippet of code written in Java
  • Takes -- on average
Coming soon
Easy image for Java Snippet #09

Java Snippet #09

  • This challenge covers the review of a snippet of code written in Java
  • Takes -- on average
Coming soon
Easy image for Java Snippet #10

Java Snippet #10

  • This challenge covers the review of a snippet of code written in Java
  • Takes -- on average
Coming soon
Easy image for Java Snippet #11

Java Snippet #11

  • This challenge covers the review of a snippet of code written in Java
  • Takes -- on average
Coming soon
Easy image for Java Snippet #12

Java Snippet #12

  • This challenge covers the review of a snippet of code written in Java
  • Takes -- on average
Easy image for Python Snippet #01

Python Snippet #01

  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 377 students
  • Takes Less than an hour on average
Easy image for Python Snippet #02

Python Snippet #02

  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 226 students
  • Takes Less than an hour on average
Easy image for Python Snippet #03

Python Snippet #03

  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 134 students
  • Takes Less than an hour on average
Easy image for Python Snippet #04

Python Snippet #04

  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 117 students
  • Takes Less than an hour on average
Easy image for Python Snippet #05

Python Snippet #05

  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 135 students
  • Takes Less than an hour on average
Easy image for Python Snippet #06

Python Snippet #06

  • This challenge covers the review of a snippet of code written in Python
  • Completed by 87 students
  • Takes Less than an hour on average
Easy image for Python Snippet #07

Python Snippet #07

  • This challenge covers the review of a snippet of code written in Python
  • Completed by 33 students
  • Takes Less than an hour on average
Easy image for Python Snippet #08

Python Snippet #08

  • This challenge covers the review of a snippet of code written in Python
  • Completed by 21 students
  • Takes Less than an hour on average
Easy image for Python Snippet #09

Python Snippet #09

  • This challenge covers the review of a snippet of code written in Python
  • Completed by 35 students
  • Takes Less than an hour on average

Patch Review Exercises

Easy image for CVE-2005-2x8x

CVE-2005-2x8x

  • This challenge covers the review of a CVE and its patch
  • Completed by 24 students
  • Takes Less than an hour on average
  • PHP
Easy image for CVE-2006-4xxx

CVE-2006-4xxx

  • This challenge covers the review of a CVE and its patch
  • Completed by 132 students
  • Takes Less than an hour on average
  • Ruby
Easy image for CVE-2006-4xxx_ii

CVE-2006-4xxx_ii

  • This challenge covers the review of a CVE and its patch
  • Completed by 91 students
  • Takes Less than an hour on average
  • Ruby
Easy image for CVE-2008-1x3x

CVE-2008-1x3x

  • This challenge covers the review of a CVE and its patch
  • Completed by 88 students
  • Takes Less than an hour on average
  • PHP
Easy image for CVE-2008-4x9x

CVE-2008-4x9x

  • This challenge covers the review of a CVE and its patch
  • Completed by 63 students
  • Takes Less than an hour on average
  • PHP
Coming soon
Easy image for CVE-2008-5x8x

CVE-2008-5x8x

  • This challenge covers the review of a CVE and its patch
  • Takes -- on average
  • Ruby
Easy image for CVE-2008-5x8x_ii

CVE-2008-5x8x_ii

  • This challenge covers the review of a CVE and its patch
  • Completed by 25 students
  • Takes Less than an hour on average
  • Ruby
Easy image for CVE-2009-3x8x

CVE-2009-3x8x

  • This challenge covers the review of a CVE and its patch
  • Completed by 51 students
  • Takes Less than an hour on average
  • Ruby
Coming soon
Easy image for CVE-2019-5x2x

CVE-2019-5x2x

  • This challenge covers the review of a CVE and its patch
  • Takes -- on average
  • Ruby
Easy image for CVE-2020-11xxx

CVE-2020-11xxx

  • This challenge covers the review of a CVE and its patch
  • Completed by 130 students
  • Takes Less than an hour on average
  • Java
Coming soon
Easy image for CVE-2020-13xxx

CVE-2020-13xxx

  • This challenge covers the review of a CVE and its patch
  • Takes -- on average
  • Java
Easy image for CVE-2020-17xx7

CVE-2020-17xx7

  • This challenge covers the review of a CVE and its patch
  • Completed by 159 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2020-17xx8

CVE-2020-17xx8

  • This challenge covers the review of a CVE and its patch
  • Completed by 116 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2020-9x9x

CVE-2020-9x9x

  • This challenge covers the review of a CVE and its patch
  • Completed by 111 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2021-37xxx

CVE-2021-37xxx

  • This challenge covers the review of a CVE and its patch
  • Completed by 84 students
  • Takes Less than an hour on average
  • Python
Easy image for CVE-2021-381xx

CVE-2021-381xx

  • This challenge covers the review of a CVE and its patch
  • Completed by 60 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2021-39x3x

CVE-2021-39x3x

  • This challenge covers the review of a CVE and its patch
  • Completed by 42 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2021-4379x

CVE-2021-4379x

  • This challenge covers the review of a CVE and its patch
  • Completed by 95 students
  • Takes Less than an hour on average
  • Golang
Easy image for CVE-2021-45xx9

CVE-2021-45xx9

  • This challenge covers a vulnerable snippet in a real Python application
  • Completed by 36 students
  • Takes Less than an hour on average
  • Python
Easy image for CVE-2021-4xx50

CVE-2021-4xx50

  • This challenge covers the review of a CVE and its patch
  • Completed by 164 students
  • Takes Less than an hour on average
  • Golang
Medium image for CVE-2022-26xx9

CVE-2022-26xx9

  • This challenge covers a vulnerable snippet in a real Java application
  • Completed by 3 students
  • Takes Less than an hour on average
  • Java

Code Review Exercises

Medium image for Code Review 01

Code Review 01

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 305 students
  • Takes Between 1 and 2 hours on average
  • JavaScript
Medium image for Code Review 02

Code Review 02

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 190 students
  • Takes Between 1 and 2 hours on average
  • Python
Hard image for Code Review 03

Code Review 03

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 69 students
  • Takes Between 2 and 4 hours on average
  • JavaScript
Hard image for Code Review 04

Code Review 04

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 164 students
  • Takes Between 1 and 2 hours on average
  • JavaScript
Hard image for Code Review 05

Code Review 05

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 64 students
  • Takes Between 2 and 4 hours on average
  • JavaScript
Medium image for Code Review 06

Code Review 06

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 36 students
  • Takes Between 2 and 4 hours on average
  • Golang
Hard image for Code Review 07

Code Review 07

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 84 students
  • Takes Between 1 and 2 hours on average
  • Golang
Easy image for Code Review 08

Code Review 08

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 63 students
  • Takes Between 1 and 2 hours on average
  • Golang
Hard image for Code Review 09

Code Review 09

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 63 students
  • Takes Between 1 and 2 hours on average
  • Golang
Easy image for Code Review 10

Code Review 10

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 74 students
  • Takes Less than an hour on average
  • Golang
Hard image for Code Review 11

Code Review 11

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 26 students
  • Takes Between 2 and 4 hours on average
  • C#/.Net
Easy image for Code Review 12

Code Review 12

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 91 students
  • Takes Less than an hour on average
  • Java
Hard image for Code Review 13

Code Review 13

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 46 students
  • Takes Between 2 and 4 hours on average
  • Java
Easy image for Code Review 14

Code Review 14

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 62 students
  • Takes Less than an hour on average
  • Java
Easy image for Code Review 15

Code Review 15

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 56 students
  • Takes Less than an hour on average
  • Java
Easy image for Code Review 16

Code Review 16

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 56 students
  • Takes Less than an hour on average
  • Java
Easy image for Code Review 17

Code Review 17

  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 24 students
  • Takes Between 1 and 2 hours on average
  • .Net
Coming soon
Easy image for Code Review 18

Code Review 18

  • This exercise is one of our challenges to help you learn how to review real source code
  • Takes -- on average
  • Java