Is there anyway to change the value of global variable in function and access outside the local scope in js

Question

Is there anyway to change the value of global variable in function and access the changed value of global variable outside the function in javascript or nodejs...

var x=8;
function changed(x)
{
   x=10;
 }
console.log(x);

The actual output is 8 but i want the value of x is 10. is it possible in javascript or nodejs

Possible duplicate of [What is the scope of variables in JavaScript?](https://stackoverflow.com/questions/500431/what-is-the-scope-of-variables-in-javascript) — CertainPerformance, Aug 11 '19 at 06:14
and https://stackoverflow.com/questions/10872006/how-do-i-change-the-value-of-a-global-variable-inside-of-a-function — CertainPerformance, Aug 11 '19 at 06:15
Remove the parameter from the `changed` function, else reassigning it will only reassign the value tied to the local name — CertainPerformance, Aug 11 '19 at 06:15

Nayan Patel · Accepted Answer · 2019-08-11T06:43:35.030

0

If you pass x then the parameter becomes local to the function, when a variable is global, you can just use it in any function to changes the value of the global variable, and it will reflect everywhere.

var x=8;

function changed() {
   x=10;
}
changed(x)
console.log(x);

edited Aug 11 '19 at 06:43

answered Aug 11 '19 at 06:38

Nayan Patel

1,683
25
27

Is there anyway to change the value of global variable in function and access outside the local scope in js

1 Answers1