javascript pass code example

Example 1: pass keyword in javascript

// leave it blank there is no pass keyword ie. blank space means PASS

Example 2: javascript pass by value

function func(obj) {
  obj = JSON.parse(JSON.stringify(obj)); //If too slow, replace with other method of deep cloning
  obj.a += 10;
  return obj.a;
}

var myObj = {a: 5};
func(myObj); //Returns 15 and myObj.a is still 5

Example 3: if you run a script.js with the code, how do you access the value passed to "var" inside script.js ...

if you run a script.js with the code, how do you access the value passed to "var" inside script.js VAR=value node script.js