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Possible Duplicate:
string.charAt(x) or string[x]?
It seems that "asdf"[0] produces "a". So why would anyone ever type out "asdf".charAt(0)?
Is that shorter syntax safe to use?
Cross browser compatibility? That’s about all I can think of.
You can only access strings as arrays in newer browsers. To support older browsers (i.e. IE7) you have to use
charAt.Related: string.charAt(x) or string[x]?