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Journey
Phase 2

JavaScript core

You'll be able to read variables, functions, arrays and objects and predict what code does.

4–6 wks · 12 topics · about 15 h

Topics
  1. 12.1Values and variables60 min
  2. 22.2Strings and numbers60 min
  3. 32.3Making decisions with if75 min
  4. 42.4Loops90 min
  5. 52.5Functions in, values out90 min
  6. 62.6Arrays75 min
  7. 72.7Objects75 min
  8. 82.8Arrays and map90 min
  9. 92.9filter and find75 min
  10. 102.10reduceoptional60 min
  11. 112.11Scope60 min
  12. 122.12Reading error messages60 min
Ends with
A tip calculator
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Mamun Labs Learn
JourneyGlossary
esc
  • Try “map”, “flexbox” or “state”.
Log in
Start learning
  1. 12.1Values and variables60 min
  2. 22.2Strings and numbers60 min
  3. 32.3Making decisions with if75 min
  4. 42.4Loops90 min
  5. 52.5Functions in, values out90 min
  6. 62.6Arrays75 min
  7. 72.7Objects75 min
  8. 82.8Arrays and map90 min
  9. 92.9filter and find75 min
  10. 102.10reduceoptional60 min
  11. 112.11Scope60 min
  12. 122.12Reading error messages60 min