Solution of Freecodecamp.org problem 162 [Solved]

The number 162th is a tough problem named 'Local Scope and Functions' in Freecodecamp.org.

Here is the problem that they given.

function myLocalScope() {
  'use strict';
  
  
  console.log(myVar);
}
myLocalScope();

// Run and check the console
// myVar is not defined outside of myLocalScope
console.log(myVar);

// Now remove the console log line to pass the test

Here is the steps to find the solution and
its video.


 

Steps

1. Type var myVar = 10; below 'use strict';


function myLocalScope() {
  'use strict';
  var myVar = 10;
  
  console.log(myVar);
}
myLocalScope();

// Run and check the console
// myVar is not defined outside of myLocalScope
console.log(myVar);

// Now remove the console log line to pass the test


2.  Run the code by pressing ctrl+Enter or Clicking Run Button.


function myLocalScope() {
  'use strict';
  var myVar = 10;
  
  console.log(myVar);
}
myLocalScope();

// Run and check the console
// myVar is not defined outside of myLocalScope
console.log(myVar);

// Now remove the console log line to pass the test


3.  Now Remove only the second console.log(myVar);  See below.


function myLocalScope() {
  'use strict';
  var myVar = 10;
  
  console.log(myVar);
}
myLocalScope();

// Run and check the console
// myVar is not defined outside of myLocalScope


// Now remove the console log line to pass the test


4.  Again Run the code by pressing ctrl+Enter or Clicking Run Button. You are done.

The final view of the code will be :

function myLocalScope() {
  'use strict';
  var myVar = 10;
  
  console.log(myVar);
}
myLocalScope();

// Run and check the console
// myVar is not defined outside of myLocalScope


// Now remove the console log line to pass the test

If you have any doubts, comment below.

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