PowerShell - Regular Expressions
You want to extract all words starting with 'a' or 'A' from the string 'Apple and apricot are awesome'. Which PowerShell command correctly uses regex to do this?
You want to extract all words starting with 'a' or 'A' from the string 'Apple and apricot are awesome'. Which PowerShell command correctly uses regex to do this?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the goal and regex
The pattern '\b[aA]\w*' matches words starting with 'a' or 'A'.Step 2: Check PowerShell methods
'-match' returns true/false, not matches. '-replace' removes text. [regex]::Matches returns all matches, but .Value returns only first match. Using ForEach-Object extracts all matched words.Final Answer:
[regex]::Matches('Apple and apricot are awesome', '\b[aA]\w*') | ForEach-Object { $_.Value } -> Option AQuick Check:
Use [regex]::Matches with ForEach-Object for all matches [OK]
Quick Trick: Use [regex]::Matches and loop to get all matches [OK]
Common Mistakes:
- Using '-match' which returns only true/false
- Using '-replace' which removes matched text
- Using .Value on Matches returns only first match
Master "Regular Expressions" in PowerShell
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