javascript - How to insert a newline character after every 200 characters with jQuery -

i have textbox use insert information. want insert newline character after every 200 characters using jquery or javascript.

for instance:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 

in example, want insert newline chracter after every 200 characters. how can this?

break string after every 200 characters, add newline, , repeat process remaining string:

function addnewlines(str) {   var result = '';   while (str.length > 0) {     result += str.substring(0, 200) + '\n';     str = str.substring(200);   }   return result; }