[performance] Object.assign() should be avoided

[t2ym]

[performance] Object.assign() should be avoided

Root Cause

For jsonPath, Object.assign() looks shorter but is very slow compared with property assignment.

Workaround

Use property assignment instead. It is about 3 times faster than Object.assign()

let jsonPath = [];
jsonPath.errors = [];
jsonPath.recoveryMethod = "undefined";
let obj = new MyClass(jsonObj, jsonPath);