Redu questions

Redu answers

• Find the longest length of an array item - JS
• Mapping Array of objects and only taking unique
• Haskell run-length encoding function
• Multiple sums of object efficiently d3.js
• Getting the latest data from a promise returning service called repeatedly
• Recursive algorithm fails to complete tests in allotted time
• Setting __proto__ on object without initial prototype
• Deno on multi-core machines
• html/css3 - curved line
• Push value into array by path in javascript