Is coding something all ready written that I'm suppose to learn?

Question

well thinking of like that dont know even what im saying help

Answer 1

yes ... and after some time of learning combinig all the little snippets to something very unique.

Answer 2

its really difficult to explain, because what you learn is indeed prewritten, because if i write a code i.e.(javascript)
function a(){
var myvariable=1+1+2×2;
if(myvariable>4){
document.write(myvariable);
else{}
}
the computer already knows that is has to check the value of myvariable and check if its greater than 4 and after that totally rewrite the page with only content: myvariable
so in that case coding is prewritten, but you have to code what the program has to do
(just say if you dont understand me, its just hard to explain)