How to create while loop,for loop and for while loop?

Answer 1

while(condition){
// do stuff

}

do{
// stuff

}while(condition);

for(variable;condition;itteration){
//do stuff
}

variable/
var a = 0;

condition/
Any true of false statement (boolean)
a < 10;

itteration/
modification of the variable every time the loop has reached the end.

a++;
for(var a = 0; a < 10; a++)
{

}

Answer 2

you're askin' it in application which already have answer on it in course...