Insert space before capital letters

Question

I have a string \"MySites\". I want to place a space between My and Sites.

How can I do this in jQuery or JavaScript?

Answer 1

This should insert a space between each capital letter that was not preceded by a capital letter.

var myString = "MySites"
var newString = "";
var wasUpper = false;
for (var i = 0; i < myString.length; i++)
{
    if (!wasUpper && myString[i] == myString.toUpperCase()[i])
    {
        newString = newString + " ";
        wasUpper = true;
    }
    else
    {
        wasUpper = false;
    }
    newString = newString + myString[i];
}

newString will have the value you want. Also, if you want to shorten your code using regex, you can use the following code from Javascript camelCase to Regular Form

"thisStringIsGood"
    // insert a space before all caps
    .replace(/([A-Z])/g, ' $1')
    // uppercase the first character
    .replace(/^./, function(str){ return str.toUpperCase(); })