CF doesn't have a built-in to do it, but it's not hard to write:
function replaceAt(string, index, char) {
if (index EQ 1) {
return char & removeChars(string, 1, 1);
} else {
return left(string, index - 1) & char & removeChars(string, 1,
index);
}
}
Here's a test case:
<cfloop from="1" to="25" index="i">
<cfset s = repeatString("X", 9) />
<cfset n = randRange(1, len(s)) />
<code>#s# : #n# : #replaceAt(s, n, "_")#</code><br />
</cfloop>
cheers,
barneyb
On Wed, Nov 5, 2008 at 12:33 PM, Andy Matthews <[EMAIL PROTECTED]> wrote:
> How might I go about replacing a specific character in a string with another
> character? I'd like to get a random position in a string, then replace that
> specific character with something else.
>
> So I might start with: 'XXXXXXXXXX' (10 characters)
> I'd get a random position in that string (say 7).
> Then I'd replace the X at position 7 with a $ giving me this: 'XXXXXX$XXX'
>
> Does CF have a "replaceAt" method?
>
>
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