Code Review Badge

41 Completed
83 Videos
107 Exercises

Code Review Videos

Snippet Review Exercises

Easy
Golang Snippet #01
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 887 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #02
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 738 students
  • Takes < 1 Hr. on average

 

Medium
Golang Snippet #03
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 606 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #04
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 681 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #05
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 641 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #06
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 556 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #07
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 580 students
  • Takes < 1 Hr. on average

 

Medium
Golang Snippet #08
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 543 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #09
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 511 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #10
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 566 students
  • Takes < 1 Hr. on average

 

Easy
Golang Snippet #11
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 554 students
  • Takes < 1 Hr. on average

 

Medium
Golang Snippet #12
  • This challenge covers the review of a snippet of code written in Golang
  • 1 video
  • Completed by 492 students
  • Takes < 1 Hr. on average

 

Easy
PHP Snippet #01
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1478 students
  • Takes < 1 Hr. on average

 

Medium
PHP Snippet #02
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1259 students
  • Takes < 1 Hr. on average

 

Easy
PHP Snippet #03
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1051 students
  • Takes < 1 Hr. on average

 

Medium
PHP Snippet #04
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 1008 students
  • Takes < 1 Hr. on average

 

Medium
PHP Snippet #05
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 935 students
  • Takes < 1 Hr. on average

 

Easy
PHP Snippet #06
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 992 students
  • Takes < 1 Hr. on average

 

Easy
PHP Snippet #07
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 866 students
  • Takes < 1 Hr. on average

 

Hard
PHP Snippet #08
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 748 students
  • Takes < 1 Hr. on average

 

Medium
PHP Snippet #09
  • This challenge covers the review of a snippet of code written in PHP
  • 1 video
  • Completed by 748 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #01
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 411 students
  • Takes < 1 Hr. on average

 

Medium
Ruby Snippet #02
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 413 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #03
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 432 students
  • Takes < 1 Hr. on average

 

Medium
Ruby Snippet #04
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 392 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #05
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 438 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #06
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 423 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #07
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 343 students
  • Takes < 1 Hr. on average

 

Easy
Ruby Snippet #08
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 376 students
  • Takes < 1 Hr. on average

 

Medium
Ruby Snippet #09
  • This challenge covers the review of a snippet of code written in Ruby
  • 1 video
  • Completed by 346 students
  • Takes < 1 Hr. on average

 

Medium
Javascript Snippet #01
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1247 students
  • Takes < 1 Hr. on average

 

Easy
Javascript Snippet #02
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 971 students
  • Takes < 1 Hr. on average

 

Easy
Javascript Snippet #03
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 1001 students
  • Takes < 1 Hr. on average

 

Medium
Javascript Snippet #04
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 930 students
  • Takes < 1 Hr. on average

 

Easy
Javascript Snippet #05
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 953 students
  • Takes < 1 Hr. on average

 

Easy
Javascript Snippet #06
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 869 students
  • Takes < 1 Hr. on average

 

Medium
Javascript Snippet #07
  • This challenge covers the review of a snippet of code written in JavaScript
  • 1 video
  • Completed by 865 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #01
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 709 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #02
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 659 students
  • Takes < 1 Hr. on average

 

Medium
TypeScript Snippet #03
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 624 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #04
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 544 students
  • Takes < 1 Hr. on average

 

Medium
TypeScript Snippet #05
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 571 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #06
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 480 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #07
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 435 students
  • Takes < 1 Hr. on average

 

Easy
TypeScript Snippet #08
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 492 students
  • Takes < 1 Hr. on average

 

Medium
TypeScript Snippet #09
  • This challenge covers the review of a snippet of code written in TypeScript
  • 1 video
  • Completed by 522 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #01
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 968 students
  • Takes < 1 Hr. on average

 

Medium
Java Snippet #02
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 898 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #03
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 821 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #04
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 790 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #05
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 716 students
  • Takes < 1 Hr. on average

 

Medium
Java Snippet #06
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 652 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #07
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 986 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #08
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 935 students
  • Takes < 1 Hr. on average

 

Medium
Java Snippet #09
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 677 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #10
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 732 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #11
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 678 students
  • Takes < 1 Hr. on average

 

Easy
Java Snippet #12
  • This challenge covers the review of a snippet of code written in Java
  • 1 video
  • Completed by 642 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #01
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 1185 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #02
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 985 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #03
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 872 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #04
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 808 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #05
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 851 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #06
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 953 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #07
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 852 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #08
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 792 students
  • Takes < 1 Hr. on average

 

Easy
Python Snippet #09
  • This challenge covers the review of a snippet of code written in Python
  • 1 video
  • Completed by 836 students
  • Takes < 1 Hr. on average

 

Patch Review Exercises

Easy
CVE-2008-1x3x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 407 students
  • Takes < 1 Hr. on average
  • PHP

 

Easy
CVE-2008-4x9x
  • This challenge covers the review of a CVE and its patch
  • Completed by 270 students
  • Takes < 1 Hr. on average
  • PHP

 

Easy
CVE-2008-5x8x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 312 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
CVE-2009-3x8x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 305 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
CVE-2020-17xx7
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 491 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2020-9x9x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 397 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2006-4xxx
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 347 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
CVE-2006-4xxx_ii
  • This challenge covers the review of a CVE and its patch
  • Completed by 247 students
  • Takes < 1 Hr. on average
  • Ruby

 

Easy
CVE-2020-11xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 340 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2020-17xx8
  • This challenge covers the review of a CVE and its patch
  • Completed by 323 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2021-37xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 298 students
  • Takes < 1 Hr. on average
  • Python

 

Easy
CVE-2021-39x3x
  • This challenge covers the review of a CVE and its patch
  • Completed by 238 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
CVE-2021-4379x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 370 students
  • Takes < 1 Hr. on average
  • Golang

 

Easy
CVE-2021-45xx9
  • This challenge covers a vulnerable snippet in a real Python application
  • Completed by 369 students
  • Takes < 1 Hr. on average
  • Python

 

Easy
CVE-2022-3x7x1
  • This challenge covers the review of a CVE and its patch
  • Completed by 368 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
CVE-2008-5x8x_ii
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 233 students
  • Takes < 1 Hr. on average
  • Ruby

 

Medium
CVE-2019-5x2x
  • This challenge covers the review of a CVE and its patch
  • 1 video
  • Completed by 220 students
  • Takes < 1 Hr. on average
  • Ruby

 

Medium
CVE-2020-13xxx
  • This challenge covers the review of a CVE and its patch
  • Completed by 253 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
CVE-2021-381xx
  • This challenge covers the review of a CVE and its patch
  • Completed by 275 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
CVE-2021-4xx50
  • This challenge covers the review of a CVE and its patch
  • Completed by 465 students
  • Takes < 1 Hr. on average
  • Golang

 

Medium
CVE-2022-26xx9
  • This challenge covers a vulnerable snippet in a real Java application
  • Completed by 228 students
  • Takes < 1 Hr. on average
  • Java

 

Hard
CVE-2005-2x8x
  • This challenge covers the review of a CVE and its patch
  • Completed by 248 students
  • Takes < 1 Hr. on average
  • PHP

 

Code Review Exercises

Medium
Code Review 01
  • This exercise is one of our challenges to help you learn how to review real source code
  • 1 video
  • Completed by 432 students
  • Takes 1-2 Hrs. on average
  • JavaScript

 

Medium
Code Review 02
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 272 students
  • Takes 1-2 Hrs. on average
  • Python

 

Hard
Code Review 03
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 136 students
  • Takes 2-4 Hrs. on average
  • JavaScript

 

Hard
Code Review 04
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 221 students
  • Takes 1-2 Hrs. on average
  • JavaScript

 

Hard
Code Review 05
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 115 students
  • Takes 2-4 Hrs. on average
  • JavaScript

 

Medium
Code Review 06
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 80 students
  • Takes 2-4 Hrs. on average
  • Golang

 

Hard
Code Review 07
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 143 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Easy
Code Review 08
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 161 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Hard
Code Review 09
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 115 students
  • Takes 1-2 Hrs. on average
  • Golang

 

Medium
Code Review 10
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 165 students
  • Takes < 1 Hr. on average
  • Golang

 

Hard
Code Review 11
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 73 students
  • Takes 2-4 Hrs. on average
  • C#/.Net

 

Medium
Code Review 12
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 225 students
  • Takes < 1 Hr. on average
  • Java

 

Hard
Code Review 13
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 109 students
  • Takes 2-4 Hrs. on average
  • Java

 

Medium
Code Review 14
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 189 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
Code Review 15
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 169 students
  • Takes < 1 Hr. on average
  • Java

 

Easy
Code Review 16
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 170 students
  • Takes < 1 Hr. on average
  • Java

 

Medium
Code Review 17
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 92 students
  • Takes 1-2 Hrs. on average
  • .Net

 

Medium
Code Review 18
  • This exercise is one of our challenges to help you learn how to review real source code
  • Completed by 77 students
  • Takes 1-2 Hrs. on average
  • Java