Check for a word — practice exercise

What you'll be asked to do

1. 1.Check for a wordexercise · easy · 10 min

   Report whether the text contains Script.

   Passes when: #out should show contains it.

2. 2.Find a positionexercise · easy · 10 min · practice plan

   Report where the word Basics starts.

   Passes when: #out should show 11.

3. 3.Check the endingexercise · easy · 10 min · practice plan

   Report whether the file name ends with pdf.

   Passes when: #out should show a pdf.

4. 4.Report a missing wordexercise · easy · 10 min · practice plan

   Report the value indexOf gives when nothing matches.

   Passes when: #out should show -1.

5. 5.Find the last separatorexercise · medium · 10 min · practice plan

   Report the position of the final slash.

   Passes when: #out should show 3.

6. 6.Fix the truthy index checkbug fix · easy · 8 min

   A match at position 0 is falsy, so it looks missing.

   Passes when: #out should show starts with a.

7. 7.Fix the case-sensitive searchbug fix · easy · 8 min · practice plan

   The word is there but capitalised differently.

   Passes when: #out should show contains it.

8. 8.Fix first used instead of lastbug fix · easy · 8 min · practice plan

   The final slash is wanted, not the first.

   Passes when: #out should show 3.

9. 9.Fix endsWith checking the startbug fix · easy · 8 min · practice plan

   The extension is at the end of the name.

   Passes when: #out should show a pdf.

10. 10.Fix the search started too latebug fix · easy · 8 min · practice plan

    Starting past the match misses it entirely.

    Passes when: #out should show 0.

Between them these tasks cover includes, indexOf and startsWith.

Looking for a different chapter? See every practice set, or switch to the interview theory questions.