Example of Pipeline Operator proposal

pipeline-operator.js

// Some functions that do string operations
function doubleSay (str) {
  return str + ", " + str;
}
function capitalize (str) {
  return str[0].toUpperCase() + str.substring(1);
}
function exclaim (str) {
  return str + '!';
}

// old way
let result = exclaim(capitalize(doubleSay("hello")));
result //=> "Hello, hello!"

// with the new pipeline operator
let result = "hello"
  |> doubleSay
  |> capitalize
  |> exclaim;

result //=> "Hello, hello!"