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How do I make the first letter of a string uppercase in JavaScript?

How do I make the first character of a string uppercase if it's a letter, but not change the case of any of the other letters?

For example:

  • "this is a test" → "This is a test"
  • "the Eiffel Tower" → "The Eiffel Tower"
  • "/index.html" → "/index.html"

Answer*

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  • 30
    @Simon It's not stated that the string is necessarily going to be output as part of a HTML document - CSS is only going to be of use if it is. Commented Jan 18, 2012 at 9:32
  • 10
    Adam, true, but I'd guess that over 95% of the Javascript out there is used with HTML & CSS. Unfortunately, the "capitalize" statement actually capitalizes every word, so you'd still need JS to capitalize only the first letter of the string. Commented Jan 21, 2012 at 4:24
  • 19
    Incorrect, Dinesh. He said the first character of the string. Commented Jun 26, 2012 at 0:02
  • 86
    This answer, despite having a ridiculous number of upvotes, is just wrong, as it will capitalize the first letter of every word. @Ryan, you'll earn a Disciplined badge if you delete it. Please do so. Commented Nov 7, 2012 at 6:06
  • 6
    It's now javascript: $('.capitalize').css('text-transform', 'capitalize') Commented Apr 13, 2013 at 8:58

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