How do i increase the increment in javascript loops

Question

in incrementation while using ++ the no. increases by 1 . what if i want it to increase by 2

Answer 1

for(var i = 0; i < 100; i += 2)

Answer 2

The full write of adding a value to another is:

result = first_value + second_value;

... with first_value and second_value as litteral values and/or variable identifier names, and result as variable identifier mandatory.
If you want to update a variable (use it as one of the value to be added) you simply write:

result = result + value;

... with value as litteral or variable.
The comes the shorthand writting; to do same (update a variable) you can write:

result += value;

... wich do exactly the same, with value still litteral or variable.
In special case of value is litteral equal to one:

result = result + 1;

is equivalent to:

result += 1;

... as we previously explained.
But you can also do shorter:

result++;

... or even:

++result;

... but the slightly difference between those two last is beyond the scope of this answer (search in Q&A or internet, this subject had already been discussed too much times)

Answer 3

I don't really understand the question. An increment is an increase. Could you please explain what you want to know?
edit: thanks for adding a description. don't mess with Texas' answer is what you were looking for