Why assigning boolean to variable?

Question

I have some confusion about assigning boolean to variable
for example:
var active = true;
Please explain me about this.

Answer 1

you could use it to control the flow of your program. for example if you have a loop that runs until you change a boolean variable to false.
var ctlr = true;
while(ctrl){
//some code
if a condition is met
ctrl = false;
}

there are many scenarios where it's useful to use boolean.

Answer 2

Thank you so much brother bahha