Question

I’m trying to find a work around for some code that works in Firefox but not other browsers, currently the function looks like this:

function capitalise(myString) {
  // Extract 1st char (b) and rest of string (c) then return it with b capitalised
  var [a, b, c] = /^(.)(.*)$/.exec(myString);
  return b.toUpperCase()+c;
}

Which works perfectly in Firefox but Chrome and Opera won’t allow it. Can anyone suggest a decent work around?

I use the same var [ thing1, thing2, thing3 ] = regex.exec(str); syntax for various things in the script I’m writing at the moment.

Answer 1

I suppose this would work in other browsers:

function capitalise(myString) {
  // Extract 1st char (b) and rest of string (c) 
  // then return it with b capitalised
  var abc = /^(.)(.*)$/.exec(myString);
  return abc[1].toUpperCase()+abc[2];
}

Or alternatively:

function capitalise(myString) {
  return myString.match(/^(.)(.+)$/)
          .slice(1)
          .reduce(function(a,b){return a.toUpperCase()+b;}
         );
}