Explain the concept related to JavaScript block with a proper example.

Explanation:

A Javascript Block is simply a grouping of various statements into a piece of code that shares the same scope. This is accomplished using brackers {}. For example the code inside a IF Statement would be considered a block of code as it holds various statements within its brackets. For example...

if (true) {

   const test1 = 3;

   const test2 = 9;

}

In this piece of code the two const statements are part of the same block since they are within the same opening and closing brackets.