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mongodb

Regular expression

Learn how to define regex, use '.' and '?' metacharacters, construct simple patterns, and match strings. Understand case sensitivity.

3 roles need it, 2 as coreUsually level 3: WorkingLesson available

Where it sits

Learn first

Nothing: a good place to start.

This skill

Regular expression

Leads to

Introduction to Regexp package

Jobs that need it

What level 3 (Working) means

Uses it independently on the job. Level 4 (Strong): handles hard cases, reviews others.

Start learning

Regular expression

Regular expressions

about 18 min15 parts

Open the lesson

Find out where you stand

A free check, then a route that starts at your level.

Check my readiness

Learned alongside it

$all$and$elemMatch$exclude$exists$group$gt$include

Regular expression: common questions

What is Regular expression?

Learn how to define regex, use '.' and '?' metacharacters, construct simple patterns, and match strings. Understand case sensitivity.

Which jobs need Regular expression?

Full Stack Developer (MEAN), Full Stack Developer (MERN), Backend Developer (Node.js). Most ask for level 3 (Working): uses it independently on the job.

What should I learn before Regular expression?

Nothing in particular: it's a good place to start.

How long does it take to learn Regular expression?

The starting lesson, Regular expression, takes about 18 minutes. Reaching the level a job asks for takes practice on top: BootSelf measures where you are and plans the rest.

How do I practise Regular expression?

Check your readiness for free, then BootSelf builds a route and short daily learning loops: a little theory, checks on what you get wrong, then a small program.