monad 166 typescript 158 either 114 functional 111 option 110 result 102 fp 75 functional-programming 73 optional 53 javascript 42 monads 41 functor 28 error-handling 25 functional programming 25 async 24 promise 22 task 20 adt 20 rust 20 type 20 maybe-monad 19 types 19 algebraic-data-types 18 null 18 pipe 18 validation 18 some 16 none 15 type-safe 15 just 14 nullable 14 ts 14 fantasy-land 14 nothing 13 applicative 13 js 13 error 12 undefined 12 compose 11 pattern-matching 10 exception 10 programming 10 try 10 result-type 9 react 9 io 9 utility 9 nodejs 9 curry 9 immutable 8 option-type 8 ramda 8 future 8 haskell 7 node 7 library 7 flow 7 animation 7 function 7 identity 7 tuple 7 either-monad 7 state 7 reader 7 array 6 type-safety 6 zod 6 composition 6 typescript-library 6 list 5 lens 5 observable 5 codec 5 generator 5 monadic 5 pipeline 5 functors 5 railway-oriented-programming 5 result-monad 5 Maybe 5 data 5 elm 5 asynchronous 4 string 4 number 4 fsharp 4 lightweight 4 scala 4 nihil 4 Monad 4 decode 4 lodash 4 components 4 ui 4 channel 4 optics 4 fp-ts 4 browser 4 math 4 outcome 4