Regex Quiz

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Questions: 1610 minutes

Hi! My name is Freudly, i am an AI therapist, I will give you an interpretation of the test after you complete it.

08:30

July 22, 2026

July 22, 2026
Material has been updated

July 22, 2026
Material has been published

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5 completions

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Verified by Daniel Hall

Psychologist with 25 years of experience

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How the Scales are Structured

example score

10/NaN

Regex Knowledge (RK)

Measures practical understanding of JavaScript-style regular expression matching and extraction.

Foundations

Developing

Strong

0 – NaN: Foundations | 7 – NaN: Developing | 13 – NaN: Strong

A score of 10 places you in the Developing range, indicating you can interpret many common patterns but may still benefit from more precision with grouping, greediness, boundaries, and flags.

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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Frontend JavaScript Developers

46%OF USERS

They use regex for input validation, parsing, and search features and want to check their real-world pattern-writing skills.

Backend and Scripting Coders

34%OF USERS

They rely on regex for log analysis, data cleanup, and text extraction and want a quick benchmark of their accuracy with tricky cases.

Students and Job Seekers

20%OF USERS

They are learning regex for coursework or interviews and want to see where they land across beginner, intermediate, and advanced levels.

BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.

Benchmarking

See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.

Regex Knowledge (RK)

Average

9.9

Normal range

7.2 — 12.6

min.

max.

Majority

This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.

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CLEAR ANSWERS TO COMMON QUESTIONS

Frequently Asked Questions

What does this quiz measure?

It measures practical skill in reading and applying regular expressions in realistic matching and extraction tasks. Coverage includes anchors, character classes, quantifiers, groups, flags, boundaries, and lookaheads.

What syntax rules are assumed?

Items assume JavaScript-style regular expression syntax and standard string-search behavior unless an item states otherwise. Any special conditions appear in the item text.

How long does it take and how many items are included?

Estimated completion time is about 10 minutes. The quiz contains 16 questions.

How are results reported?

The total score places performance into one of three result bands. Bands provide a broad summary rather than a detailed diagnostic profile.

Is sign-up required to complete the quiz?

No sign-up is required. The quiz can be completed without creating an account.

WHAT THE TEST MEASURES

About This Assessment

Regex Quiz - Symptoms and Signs

Test your practical understanding of regular expressions with this free 16-question regex quiz. Work through realistic matching and extraction examples involving anchors, character classes, quantifiers, groups, flags, boundaries, and lookaheads. Questions assume JavaScript-style regex syntax and standard string-search behavior unless stated otherwise. Your total places your knowledge in one of three clear result bands. It is quick to complete, and no sign-up is required.

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