Javascript passing arrays to functions by value, leaving original array unaltered

Question

I\'ve read many answers here relating to \'by value\' and \'by reference\' passing for sending arrays to javascript functions. I am however having a problem sending an array

Answer 1

by default in javascript except objects and arrays, everything is copy-by-value but if you want to use copy-by-value for arrays: use [yourArray].slice(0) and for objects use Object.assign(target, ...sources)