JSFiddle - React, Tailwind, and code Playground
JavaScript
let a = "1 / 2/ 3 & 4".split(/(?:\/| |&)+/)
let b = "1/ 2/ 3 & 4".split(/(?:\/| )+/)
console.log(a)
let a = "1 / 2/ 3 & 4".split(/(?:\/| |&)+/)
let b = "1/ 2/ 3 & 4".split(/(?:\/| )+/)
console.log(a)