How to increase each number in a string?

Question

I need to search a string for any numbers in it and increase the numbers by 1. So that this \'sermon[thesis][1][name][2]\' becomes \'sermon[thesis][2][nam

Answer 1

You can use replace, it can actually take a function as the replacement "string".

var str = 'sermon[thesis][1][name][2]';
str = str.replace(/(\d+)/g, function(a){
   return parseInt(a,10) + 1;
});
console.log(str); //'sermon[thesis][2][name][3]'