assign.js

// https://stackoverflow.com/questions/34371980/multiple-left-hand-assignment-with-javascript-really-right-associative

// assignment == situation 3
let arr = [0, 1]
let pointer = arr
pointer[2] = pointer = pointer[2] || []
console.log(pointer, arr);

// situation 1
let arr = [0, 1]
let pointer = arr
pointer = pointer[2] || []
pointer[2] = pointer
console.log(pointer, arr);

// situation 2
let arr = [0, 1]
let pointer = arr
pointer = pointer[2] || []
pointer[2] = pointer[2] || []
console.log(pointer, arr);

// situation 3
let arr = [0, 1]
let pointer = arr
pointer[2] = pointer[2] || []
pointer = pointer[2] || []
console.log(pointer, arr);