SPG questions

• Removing repeated elements from a list in Haskell
• Information about Evolutionary Art
• How to call Parent function with useState Hook in React?
• How to avoid Catastrophic Backtracking in RegExp?
• Text line-height won't work with inline-block div container
• Haskell: Calculate differences of every pair of adjacent elements in a list
• Confused with removeAllViewsInLayout(), postInvalidate() and refreshDrawableState()
• Parsing XML into JSON
• Java: pick several different random numbers from array in one time
• How to merge and return new array from object in es6

SPG answers