js in new in the end did what? how to override new?

new constructor () execution order
1. open an object in the heap memory, denoted as obj
2. Add __proto__ property and obj point constructor .prototype
3. The constructor this point obj
4. perform configuration the function statement
    if the constructor does not return this value or substantially reutrn or type (number, string, boolean, nullis, obj memory heap address is returned; if the reference type return, the return value of this reference type
parodies new behavior

function People (name, Age, Phone) {
   the this .name = name;
   the this .age = Age;
   the this .phone = Phone;
   // if there is no `constructor or substantially reutrn or return this type of` (number, string, boolean , the value of null, undefined), then returns obj memory address in the stack; if the reference type `` return, the return value of this reference type 
  // return null; // no effect 
  // return {}; // returns this object 
  // return function () {}; // this function returns 
}

function _new(...args) {
  constructor the let = args [0]; // Get constructor 
  the let the Object.create obj = (constructor.prototype); // Create an empty object, and the prototype prototype point constructor 
  let res = constructor.call (obj, .. .args.slice (. 1)); // Call this point to force the first parameter 
  IF (( typeof RES === 'Object' || typeof ! RES === 'function') && RES = null ) {
     return res;
  } else {
    return obj;
  }
}

let a = _new(People, 'aa', 20, 132456);
let na = new People('aa', 20, 132456);
console.log(a, na);
// Run Results 
People {name: 'AA', Age: 20 is, Phone: 132456 }
People { name: 'aa', age: 20, phone: 132456 }

 

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