Lesson 13: Expression forced to be surrounded by spaces
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muzimuzhi commented
In lesson 13, only runs-on: ${{ matrix.os }}
passes the checks. Either runs-on: ${{matrix.os }}
or runs-on: ${{ matrix.os}}
fails.
But in lesson 11, there's no such restriction. if: ${{github.ref == 'refs/heads/master'}}
passes the checks.
I understand surrounding expression by one space on each side is a good style to follow, but no spaces surrounded is valid expression syntax too (well it's not explicitly documented, but currently things like ${{matrix.os}}
works for real workflow runs.