Code Review Badge

19 Completed
81 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 550 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 516 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 413 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 480 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 439 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 371 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 397 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 369 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 350 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 376 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 368 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 327 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 1072 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 889 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 712 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 682 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 624 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 685 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 556 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 463 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 462 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 268 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 287 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 307 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 280 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 304 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 293 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 235 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 264 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 245 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 885 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 691 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 696 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 636 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 653 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 599 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 608 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 475 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 436 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 419 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 338 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 368 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 298 students
  • Takes Less than an hour 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 267 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 303 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 327 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 670 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 603 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 555 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 501 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 453 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
  • 1 video
  • Completed by 393 students
  • Takes Less than an hour on average
Easy image for Java Snippet #07

Java Snippet #07

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 626 students
  • Takes Less than an hour on average
Easy image for Java Snippet #08

Java Snippet #08

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 543 students
  • Takes Less than an hour on average
Easy image for Java Snippet #09

Java Snippet #09

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 413 students
  • Takes Less than an hour on average
Easy image for Java Snippet #10

Java Snippet #10

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 419 students
  • Takes Less than an hour on average
Easy image for Java Snippet #11

Java Snippet #11

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 405 students
  • Takes Less than an hour on average
Easy image for Java Snippet #12

Java Snippet #12

  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 380 students
  • Takes Less than an hour 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 841 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 656 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 564 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 513 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 545 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
  • 1 video
  • Completed by 604 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
  • 1 video
  • Completed by 520 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
  • 1 video
  • Completed by 451 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
  • 1 video
  • Completed by 508 students
  • Takes Less than an hour on average

Patch Review Exercises

Easy image for CVE-2021-4379x

CVE-2021-4379x

  • This challenge covers the review of a CVE and its patch
  • Completed by 263 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 229 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 347 students
  • Takes Less than an hour on average
  • Golang
Easy image for CVE-2022-3x7x1

CVE-2022-3x7x1

  • This challenge covers the review of a CVE and its patch
  • Completed by 224 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2008-1x3x

CVE-2008-1x3x

  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 261 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 175 students
  • Takes Less than an hour on average
  • PHP
Easy image for CVE-2008-5x8x

CVE-2008-5x8x

  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 176 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
  • 1 video
  • Completed by 186 students
  • Takes Less than an hour on average
  • Ruby
Easy image for CVE-2020-17xx7

CVE-2020-17xx7

  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 324 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
  • 1 video
  • Completed by 254 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2006-4xxx

CVE-2006-4xxx

  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 252 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 179 students
  • Takes Less than an hour 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 239 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 221 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 196 students
  • Takes Less than an hour on average
  • Python
Easy image for CVE-2021-39x3x

CVE-2021-39x3x

  • This challenge covers the review of a CVE and its patch
  • Completed by 142 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2008-5x8x_ii

CVE-2008-5x8x_ii

  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 146 students
  • Takes Less than an hour on average
  • Ruby
Easy image for CVE-2019-5x2x

CVE-2019-5x2x

  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 135 students
  • Takes Less than an hour on average
  • Ruby
Easy image for CVE-2020-13xxx

CVE-2020-13xxx

  • This challenge covers the review of a CVE and its patch
  • Completed by 147 students
  • Takes Less than an hour on average
  • Java
Easy image for CVE-2021-381xx

CVE-2021-381xx

  • This challenge covers the review of a CVE and its patch
  • Completed by 177 students
  • Takes Less than an hour on average
  • Java
Medium image for CVE-2022-26xx9

CVE-2022-26xx9

  • This challenge covers a vulnerable snippet in a real Java application
  • Completed by 140 students
  • Takes Less than an hour on average
  • Java
Hard image for CVE-2005-2x8x

CVE-2005-2x8x

  • This challenge covers the review of a CVE and its patch
  • Completed by 157 students
  • Takes Less than an hour on average
  • PHP

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 362 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 229 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 104 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 190 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 90 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 57 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 116 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 116 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 90 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 122 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 47 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 166 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 76 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 129 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 121 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 119 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 56 students
  • Takes Between 1 and 2 hours on average
  • .Net
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
  • Completed by 40 students
  • Takes Between 1 and 2 hours on average
  • Java