switch(true) pattern by Sean Barry

switch(true)-pattern.js

// 5 June 2022
// Sean Barry's Using the switch(true) pattern in javascript
// https://seanbarry.dev/posts/switch-true-pattern

function s(v) {
  switch(true) {
    case v === 1:
      console.log("strictly equals 1")
      return;
    case v == 1:
      console.log("loosely equals 1")
      return;
    case !!v:
      console.log("truthy")
      return;

    default:
      console.error("default");
      return v;
  }
}

[2,'1',1,0].forEach(v => s(v));

/*
truthy
loosely equals 1
strictly equals 1
default
*/