Programming ColdFusion

Name

ArraySwap

Synopsis

ArraySwap(array, position1, position2)

Swaps the values stored in the positions specified in position1 and position2. Here’s an example that takes an array and swaps the values contained in elements 5 and 2:

<CFSET Grades = ArrayNew(1)>
<CFSET Grades[1] = 95>
<CFSET Grades[2] = 93>
<CFSET Grades[3] = 87>
<CFSET Grades[4] = 100>
<CFSET Grades[5] = 74>

<B>Original Array</B><BR>
<CFLOOP Index="Element" FROM="1" TO="#ArrayLen(Grades)#">
  <CFOUTPUT>Grade #Element#: #Grades[Element]#<BR></CFOUTPUT>
</CFLOOP>

<P>Swap 5th and 2nd array elements...
<CFSET ArraySwap(Grades, 5, 2)>

<P><B>Array after ArraySwap</B><BR>
<CFLOOP Index="Element" FROM="1" TO="#ArrayLen(Grades)#">
  <CFOUTPUT>Grade #Element#: #Grades[Element]#<BR></CFOUTPUT>
</CFLOOP>