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Using Code Auto-Complete

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Overview

The code editor available in the HackerRank Tests has an Intellisense-like-autocomplete feature similar to what is found in modern editors such as Eclipse or Visual Studio. While typing code in HackerRank Tests, this feature allows Candidates to speed up their coding and reduces the keyboard input time using auto-completion syntax pop-ups. It also hints at any syntax errors beforehand and saves the Candidates' time involved in fixing compilation issues.

Auto-Complete for Coding Questions

The auto-complete feature automatically gets triggered at specific syntax points when you are coding in C, C++, Java7, PHP, Python 2, Ruby, JavaScript, Nodejs, Go, Python 3, Java8, or C++ 14.

For example, while coding in Python, when you type Sys. , you will see the different syntax suggestions in the auto-complete popup menu as shown below. You can choose from the available suggestions and adopt it by typing the Tab or Enter key.

the_auto-complete_pop-up.jpg

Syntax suggestions in the auto-complete popup menu
 

With auto-complete enabled the editor identifies and underlines incorrect syntax which can result in compilation errors. Hover your mouse over the code, and a tool-tip describes the error. You can fix these errors early and save time in your Test.

syntax_errors_highlighted_in_code.jpg

Syntax errors indicated in the editor

 

Enabling/Disabling Auto-complete

In your coding Tests, click the three dots and Enable/Disable the auto-complete feature as required. While typing your code in the editor:

  • Press CTRL + Space key to trigger the auto-complete pop-up menu manually.

Autocomplete.png

 The auto-complete toggle option in the editor settings menu

Auto-Complete in the IDE for Projects type Questions

In the IDE, press CTRL + SPACE to trigger the auto-complete pop-up menu, and press TAB to add the top suggestion.

Auto-complete_Popup.jpg

Code auto-complete in the IDE

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Comments

2 comments

Date Votes
  • Adel Senhadji

    Code auto-complete works fine in all langages except for Java (7 and 8), there is no Intellisense feature in settings also Ctrl+Space doesn't give any suggestion.

    1
  • George (Bill) Elliott

    I guess I should submit a ticket or something... earlier today, my intellisense stopped working... or, it will work for a bit, then quit.  I have tried three separate browsers. Google Chrome is my main one, then I tried Firefox, and the illustrious Edge, but they ALL act the same way.

    I am using C#, BTW;

     

    Troubleshooting Techniques

    Reboot machine (even tried a total shut-down, unplug and restart)Open a new Challenge

    • Initial entry into the coding pane does render pop-up assistance (intellitype), but then stops.

    Open a new Challenge

    • Expand the Editor to full-screen
    • Same results regardless.  Sometimes the assistance appears, mostly it does not.

    Open a new Challenge

    • Change coding language to any of the other ones noted in this article.
    • Only seems as though C++ or Javascript (Node.js) will work for me

     

    FWIW

    I am on a Windows 10 Pro machine that is as up-to-date as I can be, I believe;

    0

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