3 ms·

#iphone[center-x] == #ipad[center-x]; #iphone[bottom] == #ipad[bottom]; Why are they assigning values using what's traditionally a comparison operator?

• bryanlarsen 13y ago
  That's not an assignment. That's telling the solver "Do whatever you need to do to satisfy this condition". Either the right or the left or both may change.
  • d4tocchini 13y ago
    Yeah, common in the Constraint-based, or Logic, Programming paradigm. This particular spec was established in Greg Badros & Alan Borning's Constraint CSS (CCSS): https://www.cs.washington.edu/research/constraints/web/ccss-uwtr.pdf https://www.cs.washington.edu/research/constraints/web/ccss-...
    • lewispollard 13y ago
      Interesting, thanks.